3Com 3C892 - OfficeConnect ISDN Lan Modem Router User Manual

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Contents

3Com 3C892 - OfficeConnect ISDN Lan Modem Router User Manual Manual pdf 91 page image

94 CHAPTER 9: TROUBLESHOOTING AND MAINTENANCEEvaluating Symptomsand SolutionsTable 6 lists symptoms of common problems, possible causes, and possiblesolutions.Table 6 Symptoms, Causes, and SolutionsSymptom Possible Cause SolutionUpon initial setup,communication between theISDN LAN Modem and mycomputer cannot beestablished.Incompatible IP address on yourcomputer.Reset the IP address on your computer.For Windows 98 and 95 users, run Winipcfg.exe.Select the Ethernet adapter connected to the ISDN LANModem. Click Release All and then click Renew All.For Windows NT 4.0 and Windows 3.11 users, runipconfig /release and ipconfig /renew.For Mac users, from the Apple menu, select ControlPanels and then select TCP/IP. Make sure Ethernet isselected in the Connect via field. From the Configurefield, select Using BootP Server to clear the fields, thenclose and save changes to the Control Panel. Open theTCP/IP control panel and select Using DHCP Server. Thefields should now read server>. Select File and then Close and save changeswhen prompted.Your Web browser needs the IPaddress of the ISDN LAN Modem.Enter the following URL in your Web browser:http://192.168.1.1/mainpage orhttp://3com.oc.lanmodem/There is a configuration problem. Reset the ISDN LAN Modem to the factory defaultsetting. Disconnect the ISDN cable from the ISDN LANModem and then connect an analog telephone to oneof the phone ports. Lift the handset and press **3266#and then replace the handset. Reconnect the ISDNcable, restart your computer and then launch your Webbrowser.The wrong cable may beconnected to the LAN port on theISDN LAN Modem and your PC.Make sure you are using the 8-pin to 8-pin cablelabeled Ethernet that was provided with your ISDN LANModem. If you are using another 10BASE-T Ethernet(Category 5) cable, it must be a straight-through cable.Web browser may not be set to adefault start page.Enter a default URL from within your Web browser.If you are using Internet Explorer, launch your Webbrowser. From the View menu select Options. FromPage, select Start Page and then enter an address in theaddress field such as http://www.3com.com.If you are using Netscape, launch your Web browser.From the Options menu, select General Preferences.From Browser Starts With, select Home Page Locationand then enter a URL such as http://www.3com.com.Your Web browser may be configured to use a proxyserver, instead of the LAN Modem.Internet Explorer users: Launch your Web browser.From the View menu, select Internet Options, and thenthe Connection tab. Under the Proxy Server header,uncheck the box labeled Accessing the Internet using aproxy server.Netscape users: Launch your web browser. From theEdit menu, select Preferences. Double-click Advanced,and then click Proxies. Check the box labeled DirectConnection to the Internet.(continued)