Tenda D840R manual

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Copyright Statement is the registered trad emark of Shenzhen Tenda Technology Co., Ltd. Other trademark or trade name mentioned herein are the trademar k or registered trademark of the company. Copyright of the whole product as integration, in cluding its accessories and software, belongs to She nzhen Tenda Technology Co., Ltd. Without the permissi[...]

D840R ADSL2+ Router User Guide CONTENTS Chapter 1 Overview .................................................... 1 1.1 Product Introduction .................................................... 1 1.2 Product Features ........................................................... 1 1.3 Supporting Protocol .................................................[...]

D840R ADSL2+ Router User Guide 4.2 Configure the PPPo A ........................................ 13 4.3 Configure the MER ........................................... 15 4.4 Configure the IPoA........................................... 18 Chapter 5 Configurat i on Descriptio n......................... 20 5.1Device Info rmation ......................[...]

D840R ADSL2+ Router User Guide 5.4.5 Software Update .................................................. 82 5.4.6 Save/Reboot ......................................................... 82 Chapter 6 Appendi x ................................................. 83 A ppendix 1: Troublesho oting .................................... 83 Appendix 2: FAQ .....[...]

D840R ADSL2+ Router User Guide Chapter 1 Overview 1.1 Product Introduction D840R ADSL2+ Router complies with ADSL, ADSL2 and ADSL2+ standards. Supporting up to 24Mbp s downstream rate and 1Mbps upstream rate, it su pports multiple network protocols and provides NAT Router, Bridge and sw itch functions. Built-in 4-port switch can add more end user s[...]

D840R ADSL2+ Router User Guide connectivity  One RJ-11 port and Voice Splitter included  One USB port suppo rt for connecting PC’s USB port  Provides Web-base d management and firmwa re upgrade  Complies with ADSL, ADSL2 and ADSL2+ standards  Provides NAT Router, B ridge and switch f unctions  Compatible with all mainstr eam DSL[...]

D840R ADSL2+ Router User Guide  ITU-T G. 992. 3  ITU-T G. 992. 5 1.4 Data Encapsulation  Supports RFC 1483 Bridge 、 RFC 1483 Router  Supports Classical IP over ATM (RFC 1577)  Supports PPP over ATM(RFC 2364)  Supports PPP over Ethernet (RFC 2516) 3[...]

D840R ADSL2+ Router User Guide Chapter 2 Hardware Installation 2.1 ADSL Router Connection 1. Connect one end of the te lephone line to the LINE port of the D810R and the other end to the MODEM port of the voice s plitter. 2. Connect the power adapter to the PWR port of the D810R. 3. Use an Ethernet cable to connect the LAN port with the NIC of your[...]

D840R ADSL2+ Router User Guide Chapter 3 Before Web Managemen t Configuration 3.1 Network Configuratio n of Your Computer 1 ． On the desktop of your computer, right-click “My Network Places”, and then select “Properties” in the shortcut menu. 2. In the window that appears, right-click “Local Area Connection”, and then select "Pro[...]

D840R ADSL2+ Router User Guide 3 ． In the pop-up dialog box, check “Internet Protocol (TCP/IP)” and then click “Properties”. 4. In the window that appears, select “Obtain an IP address automatically (O)” or “Use the following IP address (S)”. 1) When “Obtain an IP address automatically (O)” is selected, the window is as show n[...]

D840R ADSL2+ Router User Guide 2) “Use the following IP address”: IP address: 192.168.1.XXX (XXX ranges 2 ~ 254) Subnet mask: 255.255.255.0 Default gateway: 192.168.1.1 DNS server: Ente r the local DNS server addre ss (for this address, you can consult your ISP) or the router’s default gateway as the DNS server. At the end of the setting, cli[...]

D840R ADSL2+ Router User Guide 3.2 Verifying the Connection 1 ． Select “Start → Programs → Accessories → Comma nd Prompt”. According to the format shown in the right figure, ente r “Ping 192.168.1.1” and press Enter. If the system gives the resu lt shown in the right figure, the connection between your computer and the router is OK.[...]

D840R ADSL2+ Router User Guide 3.3 Logging in to the Router 1 ． Open the web browser, and enter “ http://192.168.1.1 ” in the address fi eld, and then press Enter. 2 ． In the pop-up login window, enter the user name (“admin”) and password (“admin”), and click “OK” (both user name and password are “admin” by default). 3 ． I[...]

D840R ADSL2+ Router User Guide Chapter 4 Quick Installa tion Guide In the Wizard page, Se lect the required your “Country” and “Area” from the drop-down lists. I f you can not find your country and city in these lists, you can consult your ISP and manually enter the VPI and VCI values of your area. After that, cl ick “Next”. 10[...]

D840R ADSL2+ Router User Guide 4.1 Configure the PPPoE 1 ． Select “PPP over Ethernet (PPPoE)”. Click “Next”. 2 ． Enter the PPP user na me and password provide d by the ISP. If the ISP also provides the PPPoE service name, you can enter the corresponding value; otherwise, keep this field null. Use the default values for other options. Fo[...]

D840R ADSL2+ Router User Guide 3 ． Click “Next” and check to enable the WAN service (enabled by default). 4 ． Click “Ne xt” to display the window shown the summary of your setting s. 5 ． Click “Save/Reboot” to activate your settings. The system automatically establishes connection in a few minutes. 12[...]

D840R ADSL2+ Router User Guide 4.2 Configure the PPPoA 1 ． Select “PPP over ATM (PPPoA)”. Click “Next”. 2. Enter the PPP user name and password provided by the ISP. If the ISP also provides the PPPoA service name, you can enter the corresponding value; otherwise, keep this field null. Use the default values for other options. For t heir m[...]

D840R ADSL2+ Router User Guide 3. Click “Next” and check to enable the WAN service (enabled by default). 4. Click “Next” to display the window shown the summary of your settings. 5. Click “Save/Reboot” to activate your settings. The system automatically establishes connection in a few minute s. 14[...]

D840R ADSL2+ Router User Guide 4.3 Configure the MER 1. Select “MAC Encapsulation Routing (MER)”. Click “Next”. 2. If your ISP provides the static IP address, you should enter the corresponding v alues in “WAN IP Address” and “WAN Subnet Mask”. 15[...]

D840R ADSL2+ Router User Guide 3. If your ISP provi des the dynamic IP address, you should select “Obtain an IP address automatically”. 4. Click “Next”. In the case of multiple computers share the Internet access service, it is recommend- ed to enable NAT and firewall. 16[...]

D840R ADSL2+ Router User Guide 5. Click “Next” to display the window shown the summary of your settings. 6. Click “Save/Reboot” to activate your settings. The system automatically establishes connection in a few minute s. 17[...]

D840R ADSL2+ Router User Guide 4.4 Configure the IPoA 1. Select “IP ov er ATM (IPoA)”. Click “Next”. 2. Enter the fixed IP address and subnet mask in corresponding fields. 3. Click “Next”. It is recommended to enable the NAT and firewall. 18[...]

D840R ADSL2+ Router User Guide 4. Click “Next” to display the window shown the summary of your settings. 5. Click “Save/Reboot” to activate your settings. The system automatically establishes connection in a few minutes. 19[...]

D840R ADSL2+ Router User Guide Chapter 5 Configuration Description 5.1Device Information 1) Click “Running Status” and “Summary” to display the “Device Info” and “DSL Info” window. 2) The device information covers: a. Board ID b. Software version c. Boot version d. LAN MAC address e. WAN MAC address f. Running time g. System time 20[...]

D840R ADSL2+ Router User Guide 3) The DSL information covers: a. Upstream link rate b. Downstream link rate c. LAN IP address d. Default gateway: In the pure bridge mode, there is no gateway; in other modes such as PPPoE and PPPoA, the gateway address is the IP address of the upstream device. e. Primary DNS server: In the PPPoA/PPPoE mode, the DNS [...]

D840R ADSL2+ Router User Guide 4) Click “WAN” in left menu to display the window shown in the right figure. From the table, you can know the general information on WAN. 5) Click “Route” to displa y the window shown in the right figure, displaying the default information. 22[...]

D840R ADSL2+ Router User Guide 5.2 Advanced Settings 5.2.1 WAN Click “WAN”. If the WAN information has been se t, y o u c an e d i t o r m o di f y i t i n this window. Caution : After modifying/ adding new information, you need to reboot the device to activate the setting. 1) VPI (Virtual Path Identifier): Virtual path between two points in th[...]

D840R ADSL2+ Router User Guide 3) Service category: Selecting one from five available service categories. 4) Enable Quality of Service (QoS): check to enable it . 24[...]

D840R ADSL2+ Router User Guide PPPoA mode 1) Select “PPP ove r ATM (PPPoA)”. Encapsulation Mode: VC/MUX LLC/ENCAPSULATION Once you select one mode, the system automatically changes the encapsulation mode into the one matching your setting. Therefore, it is recommended to keep the default setting unchanged. 25[...]

D840R ADSL2+ Router User Guide 2) Click “Next” to display the window shown in the right figure. a. Authentication Method: AUTO/PAP/CHAP/MSCHAP . Usually, “AU TO” is selected. b. Dial on demand: If you check this option, you need to manually enter the timeout time. If no flow is detected when the timeout time is up, the device will disconnec[...]

D840R ADSL2+ Router User Guide C. PPP IP extension: When the integrated gateway is connected with a computer, the IP address obtained through the upstream link is directly allocated to this computer connecting with the device. After the PPP IP extension is enabled, you can enable the advanced DMZ. At this t ime, you need to enter your DMZ host and [...]

D840R ADSL2+ Router User Guide 3) Click “Next” to display the window shown in the right figure. a. Enable IGMP Multicast: IGMP agent. For example, to enable the IPTV in the PPPoE mode, you need to check this option. b. Enabled WAN Service: Checked by de fault. It is recommended to keep this default setting, unless you do not need to activate yo[...]

D840R ADSL2+ Router User Guide 4) Click “Next” to display the window shown in the right figure. This window shows the general information set. 5) Click “Save/Reboot” to activate your settings. 29[...]

D840R ADSL2+ Router User Guide PPPoE mode 1) Select “PPP over Ethernet (PPPoE)”. Encapsulation Mode: VC/MUX LLC/SNAP-BRIDGING Once you select one mode, the sys tem automatically changes the encapsulation mode into the one matching your setting. Therefore, it is recommended to keep the default setting unchanged. 30[...]

D840R ADSL2+ Router User Guide 2) Click “Next” to display the window shown in the right figure. a. Authentication Method: AUTO/PAP/CHAP/MSC HAP. Usually, “AUTO” is selected. b. Dial on demand: If you check this option, you need to manually enter the timeout time. If no flow is detected when the timeout time is up, the dev ice will disconnec[...]

D840R ADSL2+ Router User Guide option, the device is always in onlin e status until device power-off, connection failure or other failures occur. c. PPP IP extension: When the device is connected with a computer, the IP address obtained through the upstream link is directly allocated to this computer connecting with the device. After the PPP IP ext[...]

D840R ADSL2+ Router User Guide uses this IP addre ss as the WAB IP address and does not need to obtain it through the upstream link. e. Retry PPP password on authentication error f. Enable PPP debugging mode. 33[...]

D840R ADSL2+ Router User Guide 8) Click “Next” to di splay the window shown in the right figure. a. Enable IGMP Multica st: IGMP agent. For example, to enable the IPTV in the PPPoE mode, you need to check this option. b. Enabled WAN Service: Checked by de fault. It is recommended to keep this default setting, unless you do not need to activate [...]

D840R ADSL2+ Router User Guide 8) Click“Next” to displa y the window shown in the right figure. This window lists your settings. 8) Click “Save/Reboot” to activate your settings. 35[...]

D840R ADSL2+ Router User Guide MER mode 1) Select “MAC Encapsulation Routing(MER)”. Encapsulation Mode: VC/MUX LLC/SNAP-BRIDGING Once you select one mode, the sys tem automatically changes the encapsulation mode into the one matching your setting. Therefore, it is recommended to keep the default setting unchanged. 36[...]

D840R ADSL2+ Router User Guide 2) Click “Next” to di splay the window shown in the right figure. a. Obtain an IP address automatically: If your device automatically obtains the IP address, the IP address and other parameters will be from your ISP automatically. b. Use the foll owing IP address: To manually specify an address, you need to check [...]

D840R ADSL2+ Router User Guide the default gateway address from the upstream device. 3) Use the follo wing default gateway: To manually enter a gateway, check this option. a. Use IP Addr ess: After checking “Use the following default gateway”, you can enter a value here. b. Use WAN Interface: For the broadband access device, you need to enter t[...]

D840R ADSL2+ Router User Guide automatically obtains the DNS address. 5) Use the following DNS server address: To manually enter a DNS address, check this option. a. Primary DNS server b. Secondary DNS server 6 ) C l i c k “ N e x t ” . a. Enable IGMP Multicast: IGMP agent. For example, to enable the IPTV in the PPPoE mode, you need to check th[...]

D840R ADSL2+ Router User Guide activate your WAN. 7) Click “Next” to display the window shown in the right figure. This window lists your settings. 8) Click “Save/Reboot” to activate your settings. 40[...]

D840R ADSL2+ Router User Guide IPoA mode 1) S e l e c t “ I P o v e r A T M (IPoA)”. Encapsulation Mode: VC/MUX LLC/SNAP-ROUTING Once you select a mode, the system automatically changes the encapsulation mode into the one matching your setting. Therefore , it is recommended to keep the default setting unchanged. 41[...]

D840R ADSL2+ Router User Guide 2) Click “Next” to di splay the window shown in the right figure. a. WAN IP Address: Enter the IP address provided by your ISP. b. WAN Subnet Mask: Enter the subnet mask provided by your ISP. c. Use the following default gateway: You can check this option. d. Use IP Address: Enter the IP address provided by your I[...]

D840R ADSL2+ Router User Guide You can check this option. a. Primary DNS server b. Secondary DNS server Caution : In the IPoA mode , DHCP is not supporte d, so you need to manually enter the WAN IP address, subnet mask, default gateway, DNS server and other se ttings. 43[...]

D840R ADSL2+ Router User Guide 4) Click “Next”. a. Enable NAT: NAT enables multiple computers in your LAN to use the same WAN IP address for Inte rnet access. It is recommended to check this option. b. Enable Firewa ll It is recommended to check this option to avoid some attacks. c. Enable IGMP Multicast: IGMP agent. For example, to enable the [...]

D840R ADSL2+ Router User Guide WAN. 45[...]

D840R ADSL2+ Router User Guide e. Click “Next” to display the window shown in the right figure. This window lists your settings. g. Click “Save/Reboot” to activate your settings. 46[...]

D840R ADSL2+ Router User Guide Bridging mode 1) Select “Bridgi ng”. Encapsulation Mode: VC/MUX LLC/SNAP-BRIDGING Once you select a mode, the sys tem automatically changes the encapsulation mode into the one matching your setting. Therefore, it is recommended to keep the default setting unchanged. 2) Enable Bridge Service: To select the bri dge [...]

D840R ADSL2+ Router User Guide 3) Click “Next” to d isplay the window shown in the right fig ure. This window lists your settings. 4) Click “Save/Reboot” to activate your settings. 48[...]

D840R ADSL2+ Router User Guide 5.2.2 LAN 1). IP Address: IP a ddress used by the router to connect to the LAN. This option is set to 192.168.1.1 upon device delivery. You can change it as required. Caution: After changing this IP address, you need to use the new IP address to access the Web management window upon next login to the router. In additi[...]

D840R ADSL2+ Router User Guide your subnet mask. 3). Enable IGMP Snooping: Used in the bridge mode. 4). Standard Mode 5). Blocking Mode 6). Configure the second IP Address and Subnet Mask for LAN interface. Click “Save/Reboot”. 50[...]

D840R ADSL2+ Router User Guide 5.2.3 NA T 5.2.3.1. Vir tual Ser ver 1) Click “NAT” → “Virtua l Server” to display the window shown in the right figure. Here, you can add or delete your virtual server settings. By default, the external networks cannot access the IP address of your internal network. However, if you need such access by the e[...]

D840R ADSL2+ Router User Guide 2) Click “Add” to di splay the window shown in the right figure. a. Select a Service: Selecting the service to be enabled. b. Custom Server: Manually entering the server name. c. Server IP A ddress: LAN IP address for the server. Caution : After a service i s selected, the syste m automatically opens the correspon[...]

D840R ADSL2+ Router User Guide d. Click “Save/Apply” to display the service added, as show n in the right figure. 5.2.3.2 Port Triggering 1) Click “Port Triggering” to display the window shown in the right figure. Here, you can add or delete your p ort triggering servi ce settings. For some special applications, you need to enable some appl[...]

D840R ADSL2+ Router User Guide 2) Click “Add” to di splay the window shown in the right figure. a. Select an application: Selecting the name of the service to be enabled. b. Custom application: Manually entering the service name. Caution : After a service i s selected, the syste m automatically sets the corresponding port. After you manually en[...]

D840R ADSL2+ Router User Guide 5.2.3.3 DMZ Host 1. Click “DMZ H ost” to display the window shown in the right figure. 2. DMZ Host IP Address: Entering the LAN IP address for the D MZ host. Caution : Opening D MZ means to open all ports. In this case, your computer is totally exposed to the public network. Be cautions to use this function. Click[...]

D840R ADSL2+ Router User Guide 5.2.3.4 UPNP 1) Click “UPNP” to display the window shown in the right figure. Enable UPnP: Check to Enable the UPnP (Universal Plug and Play) function. UPnP is a kind of architecture of common network connection between the computer and intelligent devices/instruments. I t is especially c ommon in the family appli[...]

D840R ADSL2+ Router User Guide access the network (especially the family network). Click “Save/Apply” to activate the settings. 5.2.4 Security 5.2.4.1 IP Filtering 1) Click “Securit y” → “IP Filtering” to d isplay the window shown in the right figure. By default, all outgoing traffic is allowed. However , you can set IP filter ing to [...]

D840R ADSL2+ Router User Guide 2) Click “Add” to display the window shown in the right figure. a. Filter Name: Setting the filtering name to facilitate identification. b. Protocol: Selecting one from four available protocols: TCP/UDP; TCP; UDP; ICMP. c. Source IP address: Entering the internal network IP address to be filtered. d. Source Subnet[...]

D840R ADSL2+ Router User Guide f. Destination IP address: Entering the external network IP address to be fil tered. g. Destination Subnet Mask: Entering the subnet mask corresponding to the external network IP address to be fil tered. h. Destination Port: Entering the port number of the external network IP address to be fil tered. Based on the abov[...]

D840R ADSL2+ Router User Guide 3) Click “Save/Apply”. 4) Click “Incomi ng” to display the window shown in the right figure. By default, all incoming traffic is restricted. How ever, you can set IP filter ing to allow internal network access by some external computers. 60[...]

D840R ADSL2+ Router User Guide 5) Click “Add” to di splay the window shown in the right figure. a. Filter Name: Setting the filtering name to facilitate identification. b. Protocol: Selecting one from four available protocols: TCP/UDP; TCP; UDP; ICMP. c. Source IP address: Entering the external network IP address to be filtered. d. Source Subne[...]

D840R ADSL2+ Router User Guide f. Destination IP address: Entering the internal network IP address to be fil tered. h. Destination Subnet Mask: Entering the subnet mask corresponding to the internal network IP address to be fil tered. i. Destination Port: Entering the port number of the internal network IP address to be filtered. Based on the above[...]

D840R ADSL2+ Router User Guide 5) Click “Save/Apply”. 5.2.4.2. Parent Control 1) Click “Time of Day Restriction” to disp lay the window shown in the right figure. 2) Click “Add” to display the window shown in the right fig ure. Here, you can set a specific period to rest rict Internet access of a MAC address. 63[...]

D840R ADSL2+ Router User Guide 3) Click “Save/Apply”. 64[...]

D840R ADSL2+ Router User Guide 5.2.5 Routing 5.2.5.1 Default Gateway 1) Click “Routing” → “Default Gateway” to display the window shown in the right figure. Enable Automatic Assigned Default Gateway: You can check/uncheck this option. If you uncheck this option, you need to manually enter the default gateway address and W AN service. It i[...]

D840R ADSL2+ Router User Guide 5.2.5.2 Static Routing 1) Click “Static Route” to display the window shown in the right figure. Here, you can add/ delete the items of the static route. 1) Click “Add” to display the window shown in the right figure. Destination Netw ork Address: Entering the network or host for static route. Subnet Mask: Ente[...]

D840R ADSL2+ Router User Guide gateway address to be passed by the static route. Use Interface: Selecting the interface correspond- ing to your connection mode. Click “Save/Apply”. 5.2.6. DNS 5.2.6.1 DNS Server 1) Click “DNS Server” to display the window shown in the right figure. 2) Enable Automatic Assigned DNS: A fter checking it, the DN[...]

D840R ADSL2+ Router User Guide submitting the request. 3) Primary DNS server: Entering the DNS address provided by the ISP. 4) Secondary DNS server: If your ISP provides two DNS addresses, yo u can enter the other address he re. 5.2.6.2 Dynamic DNS 68[...]

D840R ADSL2+ Router User Guide 1) Click “Dynamic DNS” to display the window shown in the right figure. Here, you can add/ delete the dynamic DNS settings. Dynamic DNS can make your applied domain name correspond to your IP address, so that the other users only need to remember your domain name for accessing your server. 69[...]

D840R ADSL2+ Router User Guide 2) Click “Add” to display the window shown in the right figure. D-DNS provider: Selecting a specific provider of dynamic DNS. Hostname: Domain name applied by you . Interface: Selecting one from two available interface modes. Username: Your user name registered on the website of the dynamic DNS provider. Password:[...]

D840R ADSL2+ Router User Guide 3) Click “Save/Apply”. 71[...]

D840R ADSL2+ Router User Guide 5.2.7 DSL Click “DSL” to display the window shown in the right figure. Here, you can enable a service as required. By default, the system checks the status of G.dmt, G.lite, T1.413, ADSL2, ADSL2+, AnnexL, Inner pair and Bitswap. The device can automa- tically negotiate with the upstream device. 72[...]

D840R ADSL2+ Router User Guide 5.3 DHCP i. Click “DHCP Server” to display the window shown in the right figure. 1. You can click “Disable DHCP Server” or “Enable DHCP Server”. 2. Start IP Ad dress: Start address of the DH CP server IP pool 3. End IP A ddress: End address of the DH CP server IP pool 4 . Leased Time : Validity period of t[...]

D840R ADSL2+ Router User Guide 5.4.1 Settings 1. Click “Backup” to display the window shown in the right figure. Here, you can back up the current settings of the router. 2 ． Click “Update” to display the window shown in the right figure. Here, you can restore the router settings from the backup file. 74[...]

D840R ADSL2+ Router User Guide 3 ． Click “Restore Default” to display the w indow shown in the right figure. Click “Restore Default Settings” to restore the default settings before device de livery. Caution : After restoring the default settings, you need to reboot the router to activate this modification. 75[...]

D840R ADSL2+ Router User Guide 5.4.2 System Log 1. Click “System Log” to display the window shown in th e right figure. 2. Click “View System Log” to display the window shown in the right figure. 76[...]

D840R ADSL2+ Router User Guide 3. Click “Configure System Log” to di splay the window shown in the right figure. (1) Log: Enable; Disable (2) Log Level: Selecting the required level , Debugging by de fault. (3) Display Level: Error by default. (4) Mode: Local by default. If you select “Remote” or “Local/Remote”, the system transmits the[...]

D840R ADSL2+ Router User Guide 5.4.3 Internet Time 1. Click “Internet Time” to display the w indow shown in the right figure. If you enable this function, the system can automatically obtain the time when accessing the Internet. 78[...]

D840R ADSL2+ Router User Guide 5.4.4 Acces s Control 5.4.4.1 Service (1) Click “Access Control” to display the w indow shown in the right figure. You can enable or disable FTP/HTTP/ICMP/SNM P /SSH/TELNET/TFTP. (2) Click “Save/Apply” to activate the settings 79[...]

D840R ADSL2+ Router User Guide 5.4.4.2 IP addre ss (1) Click “IP Address” to display the window shown in the right figure. Here, you can add/delete ite ms. Access Control Mode : Enable; Disable. When you enable it, the IP address allowed can access the management page. (2) Click “Add” to display the window shown in the right figure. You can[...]

D840R ADSL2+ Router User Guide 5.4.4.3 Password (1) Click “Password” to display the window shown in the right figure. Here, you can modify the password for logging in to the Management page. Enter the former login password, and t hen the new login password. If the former login password is corre ctly entered, you can click “Save/Apply” to su[...]

D840R ADSL2+ Router User Guide 5.4.5 Software Update 1 ． Click “Update Software” to display the w indow shown in the right figure. Click “Browse” to select your update file, and then click “Update Software”. 5.4.6 Save/Reboot 1 ． Click “Save/Reboot” to display the window shown in the right figure. Rebooting device can activate t[...]

D840R ADSL2+ Router User Guide Chapter 6 Appendix A ppendix 1: Troubleshooting Trouble Case Troubleshooting Power Indicator Off  Check if the power adapter is  Connected properly.  Check if the power adapter is matched. ADSL Off  Check if the ADSL cable connection is OK.  Make sure the telephone line is OK you’re your phone.  Ch[...]

D840R ADSL2+ Router User Guide Can’t access the Internet  Make sure the above troubles are clear.  Mak e sure the dial-up con nection is established and se t up.  Mak e sure the user name and passwor d are right.  If the dial-up is OK , please mak e sure the IE proxy server is configured properly.  Ple ase try ope ning multiple w e[...]

D840R ADSL2+ Router User Guide Appendix 2: FAQ Q: What are VPI, VCI? A: VPI (Virtual Path Identifier) and VCI (Virtual Channel Identifier) are to identify ATM terminal (ADSL) for DSLAM, usually provide d the local ISP. Q: What related parameters are required from you r ISP? A: For dial user, Connection protocol, U ser name, Password, Value of VPI/V[...]

D840R ADSL2+ Router User Guide 86 VPI/VCI, Encapsulatio n mode and so on. 3) Make sure the dial-up connection is established. 4) You can check whether your ADSL Modem succeeds in connection through PING command.[...]