3Com 3C892 - OfficeConnect ISDN Lan Modem Router User Manual - page 91
94
C
HAPTER
9: T
ROUBLESHOOTING
AND
M
AINTENANCE
Evaluating Symptoms
and Solutions
Table 6 lists symptoms of common problems, possible causes, and possible
solutions.
Table 6 Symptoms, Causes, and Solutions
Symptom
Possible Cause
Solution
Upon initial setup,
communication between the
ISDN LAN Modem and my
computer cannot be
established.
Incompatible IP address on your
computer.
Reset the IP address on your computer.
For Windows 98 and 95 users, run
Winipcfg.exe
.
Select the Ethernet adapter connected to the ISDN LAN
Modem. Click Release All and then click Renew All.
For Windows NT 4.0 and Windows 3.11 users, run
ipconfig /release and ipconfig /renew.
For Mac users, from the Apple menu, select Control
Panels and then select TCP/IP. Make sure Ethernet is
selected in the Connect via field. From the Configure
field, select Using BootP Server to clear the fields, then
close and save changes to the Control Panel. Open the
TCP/IP control panel and select Using DHCP Server. The
fields should now read
server> . Select File and then Close and save changes when prompted. Your Web browser needs the IP address of the ISDN LAN Modem. Enter the following URL in your Web browser: http://192.168.1.1/mainpage or http://3com.oc.lanmodem/ There is a configuration problem. Reset the ISDN LAN Modem to the factory default setting. Disconnect the ISDN cable from the ISDN LAN Modem and then connect an analog telephone to one of the phone ports. Lift the handset and press **3266# and then replace the handset. Reconnect the ISDN cable, restart your computer and then launch your Web browser. The wrong cable may be connected to the LAN port on the ISDN LAN Modem and your PC. Make sure you are using the 8-pin to 8-pin cable labeled Ethernet that was provided with your ISDN LAN Modem. 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 a default start page. Enter a default URL from within your Web browser. If you are using Internet Explorer, launch your Web browser. From the View menu select Options. From Page, select Start Page and then enter an address in the address 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 Location and then enter a URL such as http://www.3com.com . Your Web browser may be configured to use a proxy server, instead of the LAN Modem. Internet Explorer users: Launch your Web browser. From the View menu, select Internet Options, and then the Connection tab. Under the Proxy Server header, uncheck the box labeled Accessing the Internet using a proxy server. Netscape users: Launch your web browser. From the Edit menu, select Preferences. Double-click Advanced, and then click Proxies. Check the box labeled Direct Connection to the Internet. (continued)