D-Link DIR-855 manual

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i D-Link DIR-855 User Manual D-Link reserves the right to revise this publication and to make changes in the content hereof without obligation to notify any person or organization of such revisions or changes. Manual Revisions T rademarks D-Link and the D-Link logo are trademarks or registered trademarks of D-Link Corporation or its subsidiaries in[...]

ii D-Link DIR-855 User Manual T able of Contents Preface........................................................................... i Manual Revisions ..................................................... i Trademarks .............................................................. i Product Overview ..................................................[...]

iii D-Link DIR-855 User Manual T able of Contents UPnP ............................................................ 51 Internet Ping Block ....................................... 51 Internet Port Speed ...................................... 51 Multicast Streams ......................................... 51 Administrator Settings ....................[...]

1 D-Link DIR-855 User Manual Section 1 - Product Overview Product Over view Note: Using a power supply with a different voltage rating than the one included with the DIR-855 will cause damage and void the warranty for this product. D-Link DIR-855 Media Router Power Adapter Ethernet Cable CD-ROM Stand Package Contents[...]

2 D-Link DIR-855 User Manual Section 1 - Product Overview Network Requirements • An Ethernet-based Cable or DSL modem • IEEE 802.11n-draft or 802.11g wireless clients • IEEE 802.11a wireless clients • 10/100/1000 Ethernet Web-based Conguration Utility Requirements Computer with the following: • Windows ® , Macintosh, or Linux-based op[...]

3 D-Link DIR-855 User Manual Section 1 - Product Overview Introduction TOTAL PERFORMANCE Combines award winning router features and IEEE 802.11a/Draft 802.11n wireless technology to provide the best wireless performance TOTAL SECURITY The most complete set of security features including Active Firewall and WPA2 to protect your network against outsi[...]

4 D-Link DIR-855 User Manual Section 1 - Product Overview • Faster Wireless Networking - The DIR-855 provides up to 300Mbps* wireless connection with other 802.11n wireless clients. This capability allows users to participate in real-time activities online, such as video streaming, online gaming, and real-time audio. The performance of this 802.1[...]

5 D-Link DIR-855 User Manual Section 1 - Product Overview Hardware Over view Connections USB Connect a USB 1.1 or 2.0 ash drive to congure the wireless settings using WCN. Reset Pressing the Reset button restores the router to its original factory default settings. LAN Ports (1-4) Connect Ethernet devices such as computers, switches, and hubs[...]

6 D-Link DIR-855 User Manual Section 1 - Product Overview Hardware Over view LEDs OLED Screen Displays information regarding the router. Power LED A solid light indicates a proper connection to the power supply. OLED Screen 2 3 4 6 5 1 1 WAN Displays Internet connectivity. 2 Menu Select to display the OLED main menu. 3 Performance Sel ect to disp l[...]

7 D-Link DIR-855 User Manual Section 2 - Installation Before you Begin Installation This section will walk you through the installation process. Placement of the router is very important. Do not place the router in an enclosed area such as a closet, cabinet, or in the attic or garage. • Please congure the router with the computer that was last[...]

8 D-Link DIR-855 User Manual Section 2 - Installation Wireless Installation Considerations The D-Link wireless router lets you access your network using a wireless connection from virtually anywhere within the operating range of your wireless network. Keep in mind, however, that the number, thickness and location of walls, ceilings, or other object[...]

9 D-Link DIR-855 User Manual Section 2 - Installation Network Diagram[...]

10 D-Link DIR-855 User Manual Section 2 - Installation If you are connecting the router to a cable/DSL/satellite modem, please follow the steps below: 1. Place the router in an open and central location. Do not plug the power adapter into the router. 2. Turn the power off on your modem. If there is no on/off switch, then unplug the modem’s power [...]

11 D-Link DIR-855 User Manual Section 2 - Installation If you are connecting the D-Link router to another router to use as a wireless access point and/or switch, you will have to do the following before connecting the router to your network: • Disable UPnP ™ • Disable DHCP • Change the LAN IP address to an available address on your network.[...]

12 D-Link DIR-855 User Manual Section 2 - Installation 6. Disconnect the Ethernet cable from the router and reconnect your computer to your network. 7. Connect an Ethernet cable in one of the LAN ports of the router and connect it to your other router. Do not plug anything into the Internet port of the D-Link router. 8. You may now use the other 3 [...]

13 D-Link DIR-855 User Manual Section 2 - Installation The DIR-855 includes a Quick Router Setup Wizard CD. Follow the simple steps below to run the Setup Wizard to guide you quickly through the installation process. Insert the Quick Router Setup Wizard CD in t he C D-R OM dri ve. The ste p- by- ste p in str uct ion s th at fol low ar e sh own in W[...]

14 D-Link DIR-855 User Manual Section 3 - Configuration Configuration This section will show you how to congure your new D-Link wireless router using the web-based conguration utility. W eb-based Configuration Utility To access the conguration utility, open a web-browser such as Internet Explorer and enter http://d linkrou ter or http:/[...]

15 D-Link DIR-855 User Manual Section 3 - Configuration Setup Wizard Click Launch Internet Connection Setup Wizard to begin. If you want to enter your settings without running the wizard, click Manual Conguration and skip to page 19. Click Next to continue. Create a new password and then click Next to continue.[...]

16 D-Link DIR-855 User Manual Section 3 - Configuration Select your time zone from the drop-down menu and then click Next to continue. Select the type of Internet connection you use and then click Next to continue. If you selected Dynamic, you may need to enter the MAC address of the computer that was last connected directly to your modem. If you [...]

17 D-Link DIR-855 User Manual Section 3 - Configuration If you selected PPPoE, enter your PPPoE username and password. Click Next to continue. Select Static if your ISP assigned you the IP address, subnet mask, gateway, and DNS server addresses. Note: Mak e sure to remov e y our PPP oE software from y our computer . The software is no longer neede[...]

18 D-Link DIR-855 User Manual Section 3 - Configuration If you selected Static, enter your network settings supplied by your Internet provider. Click Next to continue. Click Connect to save your settings. Once the router is nished rebooting, click Continue . Please allow 1-2 minutes to connect. Close your browser window and reopen it to test yo[...]

19 D-Link DIR-855 User Manual Section 3 - Configuration Sel ect Dynami c IP (DHCP ) to obtai n IP Addre ss information automatically from your ISP. Select this option if your ISP does not give you any IP numbers to use. This option is commonly used for Cable modem services. The Host Name is optional but may be required by some ISPs. Check the box [...]

20 D-Link DIR-855 User Manual Section 3 - Configuration Select PPPoE (Username/Password) from the drop-down menu. Select Static if your ISP assigned you the IP address, subnet mask, gateway, and DNS server addresses. In most cases, select Dynamic . Enter the IP address (Static PPPoE only). Enter your PPPoE user name. Enter your PPPoE password and [...]

21 D-Link DIR-855 User Manual Section 3 - Configuration Select Static if your ISP assigned you the IP address , subnet mask, gatewa y, and DNS server addresses. In most cases, select Dynamic . Enter the IP address (Static PPTP only). Enter the Primary and Secondary DNS Server Addresses (Static PPTP only). Enter the Gateway IP Address provided by y[...]

22 D-Link DIR-855 User Manual Section 3 - Configuration The DNS server information will be supplied by your ISP (Internet Service Provider.) Maximum Transmission Unit - you may need to change the MTU for optimal performance with your specic ISP. 1400 is the default MTU. The default MAC Address is set to the Internet port’s physical interface [...]

23 D-Link DIR-855 User Manual Section 3 - Configuration Se le ct St atic if your ISP assi gn ed you the IP add re ss , sub ne t mask, gateway, and DNS server addresses. In most cases, select Dynamic . Enter the L2TP IP address supplied by your ISP (Static only). Enter the Subnet Mask supplied by your ISP (Static only). Enter the Gateway IP Address[...]

24 D-Link DIR-855 User Manual Section 3 - Configuration MTU: Clone MAC Address: Maximum Transmission Unit - you may need to change the MTU for optimal performance with your specic ISP. 1400 is the default MTU. The default MAC Address is set to the Internet port’s physical interface MAC address on the Broadband Router. It is not recommended th[...]

25 D-Link DIR-855 User Manual Section 3 - Configuration Enter the IP address assigned by your ISP. Enter the Subnet Mask assigned by your ISP. Enter the Gateway assigned by your ISP. The DNS server information will be supplied by your ISP (Internet Service Provider.) Maximum Transmission Unit - you may need to change the MTU for optimal performanc[...]

26 D-Link DIR-855 User Manual Section 3 - Configuration Check the box to enable the wireless function. If you do not want to use wireless, uncheck the box to disable all the wireless functions. Select the time frame that you would like your wireless net wor k enab led. The sche dule may be set to Alway s. Any schedule you create will be available [...]

27 D-Link DIR-855 User Manual Section 3 - Configuration Select the Channel Width: Auto 20/40 - Select if you are using both 802.11n and non-802.11n wireless devices. 20MHz - Select if you are not using any 802.11n wireless clients. This is the default setting. Select Invisible if you do not want the SSID of your wireless network to be broadcasted [...]

28 D-Link DIR-855 User Manual Section 3 - Configuration Wireless Settings 802.11n/a (5GHz) Check the box to enable the wireless function. If you do not want to use wireless, uncheck the box to disable all the wireless functions. Select the time frame that you would like your wireless net wor k enab led. The sche dule may be set to Alway s. Any sch[...]

29 D-Link DIR-855 User Manual Section 3 - Configuration Select the Channel Width: Auto 20/40 - Select if you are using both 802.11n and non-802.11n wireless devices. 20MHz - Select if you are not using any 802.11n wireless clients. This is the default setting. Select Invisible if you do not want the SSID of your wireless network to be broadcasted [...]

30 D-Link DIR-855 User Manual Section 3 - Configuration This section will allow you to change the local network settings of the router and to congure the DHCP settings. Network Settings Enter the IP address of the router. The default IP address is 192.168.0.1. If you change the IP address, once you click Apply , you will need to enter the new I[...]

31 D-Link DIR-855 User Manual Section 3 - Configuration Check this box to enable the DHCP server on your router. Uncheck to disable this function. Enter the starting and ending IP addresses for the DHCP server’s IP assignment. No te : If yo u sta tica lly (ma nual ly) as si gn IP addr esse s to your computers or devices, make sure the IP address[...]

32 D-Link DIR-855 User Manual Section 3 - Configuration DHCP Reser vation If you want a computer or device to always have the same IP address assigned, you can create a DHCP reservation. The router will assign the IP address only to that computer or device. Note: This IP address must be within the DHCP IP Address Range. Check this box to enable th[...]

33 D-Link DIR-855 User Manual Section 3 - Configuration The DIR-855 can be congured as a virtual server so that remote users accessing Web or FTP services via the public IP address can be automatically redirected to local servers in the LAN (Local Area Network). The DIR-855 rewall feature lters out unrecognized packets to protect your LAN[...]

34 D-Link DIR-855 User Manual Section 3 - Configuration This will allow you to open a single port. If you would like to open a range of ports, refer to page 35. Ente r a name for the rul e or selec t an appl ica tion from the drop-d own menu. Sele ct an applicati on and click << to populate the elds. Enter the IP address of the computer o[...]

35 D-Link DIR-855 User Manual Section 3 - Configuration This will allow you to open a single port or a range of ports. Port For warding Enter a name for the rule or select an application from the drop-down menu. Select an application and click << to populate the elds. Enter the IP address of the computer on your local network that you wan[...]

36 D-Link DIR-855 User Manual Section 3 - Configuration Enter a name for the rule. You may select a pre-dened application from the drop-down menu and click << . This is the port used to trigger the application. It can be either a single port or a range of ports. Select the protocol of the trigger port (TCP, UDP, or Both). This is the port[...]

37 D-Link DIR-855 User Manual Section 3 - Configuration QoS Engine This option is disabled by default. Enable this op ti on fo r bet te r pe rf or ma nc e an d ex pe ri en ce wi t h online games and other interactive applications, such as VoIP. This option should be enabled when you have a slo w Inter net uplin k. It helps to re duc e the impac t [...]

38 D-Link DIR-855 User Manual Section 3 - Configuration Network Filters Select Turn MAC Filtering Off , Allow MAC addresses listed below , or Deny MAC addresses listed below from the drop-down menu. Enter the MAC address you would like to lter. To nd the MAC address on a computer, please refer to the Networ king Basics section in this manual[...]

39 D-Link DIR-855 User Manual Section 3 - Configuration Access Control Click the Add Policy button to start the Access Control Wizard. Add Policy: The Access Control section allows you to control access in and out of your network. Use this feature as Parental Controls to only grant access to approved sites, limit web access based on time or dates,[...]

40 D-Link DIR-855 User Manual Section 3 - Configuration Enter a name for the policy and then click Next to continue. Access Control Wizard (continued) Select a schedule (I.E. Always) from the drop-down menu and then click Next to continue. Enter the following information and then click Next t o continue. • Address Type - Select IP address, MAC a[...]

41 D-Link DIR-855 User Manual Section 3 - Configuration Select the ltering method and then click Next to continue. Access Control Wizard (continued) Enter the rule: Enable - Check to enable the rule. Name - Enter a name for your rule. Dest IP Start - Enter the starting IP address. Dest IP End - Enter the ending IP address. Protocol - Select the[...]

42 D-Link DIR-855 User Manual Section 3 - Configuration Add Website Filtering Rule: Website URL/ Domain: W ebsite Filters Select Allow or Deny . Enter the keywords or URLs that you want to allow or block. Click Save Settings . Website Filters are used to allow you to set up a list of allowed Web sites that can be used by multiple users through the[...]

43 D-Link DIR-855 User Manual Section 3 - Configuration Enter a name for the inbound lter rule. Select Allow or Deny . Check to enable rule. Enter the starting IP address. Enter 0.0.0.0 if you do not want to specify an IP range. Enter the ending IP address. Enter 255.255.255.255 if you do not want to specify and IP range. Click the Add button t[...]

44 D-Link DIR-855 User Manual Section 3 - Configuration SPI (Stateful Packet Inspection, also known as dynamic packet ltering) helps to prevent cyber attacks by tracking more state per session. It validates that the trafc passing through the session conforms to the protocol. Select one of the following for TCP and UDP ports: Endpoint Indepen[...]

45 D-Link DIR-855 User Manual Section 3 - Configuration Application Level Gateway (ALG) Configuration Here you can enable or disable ALG’s. Some protocols and applications require special handling of the IP payload to make them work with network address translation (NAT). Each ALG provides special handling for a specic protocol or applicatio[...]

46 D-Link DIR-855 User Manual Section 3 - Configuration Enter the IP address of packets that will take this route. Enter the netmask of the route, please note that the octets must match your destination IP address. Enter your next hop gateway to be taken if this route is used. The route metric is a value from 1 to 16 that indica tes the cost of us[...]

47 D-Link DIR-855 User Manual Section 3 - Configuration Set the transmit power of the antennas. Beacons are packets sent by an Access Point to synch roniz e a wireless network. Spec ify a value. 100 is the default setting and is recommended. This value should remain at its default setting of 2432. If inconsistent data ow is a problem, only a mi[...]

48 D-Link DIR-855 User Manual Section 3 - Configuration Advanced Wireless Settings 802.11n/a (5GHz) Set the transmit power of the antennas. Beacons are packets sent by an Access Point to synchronize a wireless network. Specify a value. 100 is the default setting and is recommended. This value should remain at its default setting of 2432. If incons[...]

49 D-Link DIR-855 User Manual Section 3 - Configuration WISH Settings WISH is short for Wireless Intelligent Stream Handling, a technology developed to enhance your experience of using a wireless network by prioritizing the trafc of different applications. Enable this option if you want to allow WISH to prioritize your trafc. Enable WISH: Al[...]

50 D-Link DIR-855 User Manual Section 3 - Configuration Create a name for the rule that is meaningful to you. Name: The priority of the message ow is entered here. The four priorities are dened as: BK: Background (least urgent) BE: Best Effort. VI: Video VO: Voice (most urgent) Priority: The protocol used by the messages. Protocol: The rule [...]

51 D-Link DIR-855 User Manual Section 3 - Configuration UPnP Internet Ping Block Internet Port Speed Multicast Streams To use the Univ ersa l Plu g an d Pla y (UP nP ™ ) fea ture click on Enabled . UPNP prov ides compat ibil ity with networking equipment, software and peripherals. Unchecking the box will not allow the DIR-855 to respond to pings[...]

52 D-Link DIR-855 User Manual Section 3 - Configuration Change Password Remote Management Enter a new password for the Administrator Login Name. The administrator can make changes to the settings. Enter the new password for the User login. If you login as the User, you can only see the settings, but cannot change them. Enter a name for the DIR-855[...]

53 D-Link DIR-855 User Manual Section 3 - Configuration T ime Settings Se le ct t h e Ti me Zo ne f r om t he dr op -d ow n menu. To se lec t Da yl igh t Sa vi ng tim e ma nua ll y, sel ect ena bled or disab led, and ent er a star t dat e and an end date for daylight saving time. N T P i s s h o r t f o r N e t w o r k T i m e P r o t o c o l . NT[...]

54 D-Link DIR-855 User Manual Section 3 - Configuration SysLog The Broadband Router keeps a running log of events and activities occurring on the Router. You may send these logs to a SysLog server on your network. Enable Logging to SysLog Server: SysLog Server IP Address: Check this box to send the router logs to a SysLog Server. The address of th[...]

55 D-Link DIR-855 User Manual Section 3 - Configuration Email Settings The Email feature can be used to send the system log les, router alert messages, and rmware update notication to your email address. Enable Email Notification: From Email Address: T o Email Address: SMTP Server Address: Enable Authentication: Account Name: Password: O[...]

56 D-Link DIR-855 User Manual Section 3 - Configuration Use this option to save the current router conguration settings to a le on the hard disk of the computer you are using. First, click the Save button. You will then see a le dialog, where you can select a location and le name for the settings. Use this option to load previously sav[...]

57 D-Link DIR-855 User Manual Section 3 - Configuration Click on Check Now to nd out if there is an updated rmware; if so, download the new rmware to your hard drive. After you have downloaded the new rmware, click Browse to locate the rmware update on your hard drive. Click Upload to complete the rmware upgrade. Check Automatica[...]

58 D-Link DIR-855 User Manual Section 3 - Configuration Dynamic Domain Name System is a method of keepin g a domain name linked to a changing IP Address. Check the box to enable DDNS. Ch o o se y o ur D D N S p r o vi d e r f r o m t h e dr o p down menu. Enter the Host Name that you registered with your DDNS service provider. Enter the Username f[...]

59 D-Link DIR-855 User Manual Section 3 - Configuration The Pi ng Te st is us ed to se nd Pi ng pa cke ts to te st if a computer is on the Internet. Enter the IP Address that you wish to Ping, and click Ping . The results of your ping attempts will be displayed here. System Check Ping T est: Ping Results:[...]

60 D-Link DIR-855 User Manual Section 3 - Configuration Enter a name for your new schedule. Select a day, a range of days, or All Week to include every day. Check All Day - 24hrs or enter a start and end time for your schedule. Cli ck Sav e to save your sched ule . You must click Save Settings at the top for your schedules to go into effect. The l[...]

61 D-Link DIR-855 User Manual Section 3 - Configuration This page displays the current information for the DIR-855. It will display the LAN, WAN (Internet), and Wireless information. If your Internet connection is set up for a Dynamic IP address then a Release button and a Renew button will be displayed. Use Release to disconnect from your ISP and[...]

62 D-Link DIR-855 User Manual Section 3 - Configuration Log What to View: View Levels: Apply Log Settings: Refresh: Clear: Email Now: Save Log: You can select the types of messages that you want to display from the log. Firewa ll & Securi ty , System , and Router Status messages can be selected. There are three levels of message importance: In[...]

63 D-Link DIR-855 User Manual Section 3 - Configuration Stats T h e s c re en b e l ow d i s p la ys t h e T r af c S t a t is ti cs . H e re y o u c a n v i ew t h e a m ou nt o f p a ck et s t h at p a s s t h r o ug h t h e D I R- 85 5 on both the Internet, LAN ports and both the 802.11n/g (2.4GHz) and 802.11n/a (5GHz) wireless bands. The tr[...]

64 D-Link DIR-855 User Manual Section 3 - Configuration Internet Sessions The Internet Sessions page displays full details of active Internet sessions through your router. An Internet session is a conversation between a program or application on a LAN-side computer and a program or application on a WAN- side computer.[...]

65 D-Link DIR-855 User Manual Section 3 - Configuration The wireless client table displays a list of current connected wireless clients. This table also displays the connection time and MAC address of the connected wireless clients. Wireless The WISH details page displays full details of wireless clients that are connected when WISH is enabled. WI[...]

66 D-Link DIR-855 User Manual Section 3 - Configuration Support[...]

67 D-Link DIR-855 User Manual Section 4 - Security Wireless Security This section will show you the different levels of security you can use to protect your data from intruders. The DIR-855 offers the following types of security: • WPA2 (Wi-Fi Protected Access 2) • WPA2-PSK (Pre-Shared Key) • WPA (Wi-Fi Protected Access) • WPA-PSK (Pre-Shar[...]

68 D-Link DIR-855 User Manual Section 4 - Security Wireless Security Setup Wizard To run the security wizard, click on Setup at the top and then click Launch Wireless Security Setup Wizard . Check the Manually set 5GHz band Network Name... box to manually set your desired wireless network name for the 5GHz band. Type your desired wireless network n[...]

69 D-Link DIR-855 User Manual Section 4 - Security If you s el ect ed Automatically , t he su mma ry wi ndo w wil l display your settings. Write down the security key and enter this on your wireless clients. Click Save to save your settings. If you selected Manually , the following screen will appear.[...]

70 D-Link DIR-855 User Manual Section 4 - Security From the Basic > Wizard screen, click Add Wireless Device with WPS . Add Wireless Device with WPS Wizard PIN: Select this option to use PIN method. In order to use this method you must know the wireless client’s 8 digit PIN and click Connect . PBC: Select this option to use PBC (Push Button) m[...]

71 D-Link DIR-855 User Manual Section 4 - Security Configure WP A-Personal (PSK) It is recommended to enable encryption on your wireless router before your wireless network adapters. Please establish wireless connectivity before enabling encryption. Your wireless signal may degrade when enabling encryption due to the added overhead. 1. Log into th[...]

72 D-Link DIR-855 User Manual Section 4 - Security It is recommended to enable encryption on your wireless router before your wireless network adapters. Please establish wireless connectivity before enabling encryption. Your wireless signal may degrade when enabling encryption due to the added overhead. 1. Lo g into th e web- base d con g urat i[...]

73 D-Link DIR-855 User Manual Section 4 - Security 8. Next to RADIUS Ser v er P or t , enter the port you are using with your RADIUS server. 1812 is the default port. 9. Next to RADIUS Ser ver Shared Secret , enter the security key. 10. If the MA C Address Authentication box is selected then the user will need to connec t from the same comp uter wh[...]

74 D-Link DIR-855 User Manual Section 5 - Connecting to a Wireless Network Connect to a Wireless Network Using Windows Vista ® Windows Vista ® users may use the built-in wireless utility. If you are using another company’s utility or Windows ® 2000, please refer to the user manual of your wireless adapter for help with connecting to a wireless[...]

75 D-Link DIR-855 User Manual Section 5 - Connecting to a Wireless Network Configure Wireless Security It is recommended to enable wireless security (WPA/WPA2) on your wireless router or access point before conguring your wireless adapter. If you are joining an existing network, you will need to know the security key or passphrase being used. 2[...]

76 D-Link DIR-855 User Manual Section 5 - Connecting to a Wireless Network 3. Enter the same security key or passphrase that is on your router and click Connect . It may take 20-30 seconds to connect to the wireless network. If the connection fails, please verify that the security settings are correct. The key or passphrase must be exactly the same[...]

77 D-Link DIR-855 User Manual Section 5 - Connecting to a Wireless Network Connect Using WCN 2.0 in Windows Vista ® The router supports Wi-Fi protection, referred to as WCN 2.0 in Windows Vista ® . The following instructions for setting this up depends on whether you are using Windows Vista ® to congure the router or third party software. Whe[...]

78 D-Link DIR-855 User Manual Section 5 - Connecting to a Wireless Network Connect to a Wireless Network Using Windows ® XP Windows ® XP users may use the built-in wireless utility (Zero Conguration Utility). The following instructions are for Service Pack 2 users. If you are using another company’s utility or Windows ® 2000, please refer t[...]

79 D-Link DIR-855 User Manual Section 5 - Connecting to a Wireless Network Configure WP A-PSK It is recommended to enable WPA on your wireless router or access point before conguring your wireless adapter. If you are joining an existing network, you will need to know the WPA key being used. 2. Highlight the wireless network (SSID) you would lik[...]

80 D-Link DIR-855 User Manual Section 5 - Connecting to a Wireless Network 3. The Wireless Network Connection box will appear. Enter the WPA-PSK passphrase and click Connect . It may take 20-30 seconds to connect to the wireless network. If the connection fails, please verify that the WPA-PSK settings are correct. The WPA-PSK passphrase must be exa[...]

81 D-Link DIR-855 User Manual Section 6 - T roubleshooting T roubleshooting This chapter provides solutions to problems that can occur during the installation and operation of the DIR-855. Read the following descriptions if you are having problems. (The examples below are illustrated in Windows ® XP. If you have a different operating system, the s[...]

82 D-Link DIR-855 User Manual Section 6 - T roubleshooting • Congure your Internet settings: • Go to Start > Settings > Control Panel . Double-click the Internet Options Icon. From the Security tab, click the button to restore the settings to their defaults. • Click the Connection tab and set the dial-up option to Never Dial a Connec[...]

83 D-Link DIR-855 User Manual Section 6 - T roubleshooting 3. Why can’t I connect to certain sites or send and receive emails when connecting through my router? If you are having a problem sending or receiving email, or connecting to secure sites such as eBay, banking sites, and Hotmail, we suggest lowering the MTU in increments of ten (Ex. 1492,[...]

84 D-Link DIR-855 User Manual Section 6 - T roubleshooting You should start at 1472 and work your way down by 10 each time. Once you get a reply, go up by 2 until you get a fragmented packet. Take that value and add 28 to the value to account for the various TCP/IP headers. For example, lets say that 1452 was the proper value, the actual MTU size w[...]

85 D-Link DIR-855 User Manual Appendix A - Wireless Basics D-Link wireless products are based on industry standards to provide easy-to-use and compatible high-speed wireless connectivity within your home, business or public access wireless networks. Strictly adhering to the IEEE standard, the D-Link wireless family of products will allow you to sec[...]

86 D-Link DIR-855 User Manual Appendix A - Wireless Basics What is Wireless? Wireless or Wi-Fi technology is another way of connecting your computer to the network without using wires. Wi-Fi uses radio frequency to connect wirelessly, so you have the freedom to connect computers anywhere in your home or ofce network. Why D-Link Wireless ? D-Link[...]

87 D-Link DIR-855 User Manual Appendix A - Wireless Basics Wireless Personal Area Network (WPAN) Bluetooth is the industry standard wireless technology used for WPAN. Bluetooth devices in WPAN operate in a range up to 30 feet away. Compared to WLAN the speed and wireless operation range are both less than WLAN, but in return it doesn’t use nearly[...]

88 D-Link DIR-855 User Manual Appendix A - Wireless Basics Where is wireless used? Wireless technology is expanding everywhere not just at home or ofce. People like the freedom of mobility and it’s becoming so popular that more and more public facilities now provide wireless access to attract people. The wireless connection in public places is[...]

89 D-Link DIR-855 User Manual Appendix A - Wireless Basics Security Don’t let you next-do or neighb ors or intr uders connect to your wireles s network . Secure your wireles s networ k by turning on the WPA or WEP security feature on the router. Refer to product manual for detail information on how to set it up. There are basically two modes of n[...]

90 D-Link DIR-855 User Manual Appendix B - Networking Basics Networking Basics Check your IP address After you install your new D-Link adapter, by default, the TCP/IP settings should be set to obtain an IP address from a DHCP server (i.e. wireless router) automatically. To verify your IP address, please follow the steps below. Click on Start > R[...]

91 D-Link DIR-855 User Manual Appendix B - Networking Basics Statically Assign an IP address If you are not using a DHCP capable gateway/router, or you need to assign a static IP address, please follow the steps below: Step 1 Windows Vista ® - Clic k on Start > Con trol Panel > Netw ork and Intern et > Netwo rk and Sharing Center > Man[...]

92 D-Link DIR-855 User Manual Appendix C - T echnical Specifications T echnical Specifications Standards • IEEE 802.11n (draft 2.0) • IEEE 802.11a • IEEE 802.11g • IEEE 802.11b • IEEE 802.3 • IEEE 802.3u • IEEE 802.3ab Security • WPA TM -Personal / Enterprise • WPA2 TM -Personal / Enterprise • WEP 64/128-bit Wireless Signal Ra[...]