3Com OfficeConnect 3C857 User Manual

Also see for 3CRWE51196 - OfficeConnect Wireless Cable/DSL Gateway: Using Setting up Installation guide Supplementary guide User guide

Contents

3Com OfficeConnect 3C857 User Manual Manual pdf 76 page image

76 CHAPTER 6: T ROUBLESHOOTINGchoose Run and then enter winipcfg. Check that the computer hasan IP address of the form 192.168.1.xxx (where xxx is in the range2-254), the subnet mask is 255.255.255.0, and the default Gateway is192.168.1.1 (the address of the Gateway). If these are not correct, usethe Release and Renew functions to obtain a new IP address from theGateway. Under Windows 2000, use the ipconfig command-line utilityto perform the same functions.■ If you still cannot browse to the Gateway, then use the Discoveryprogram on the accompanying CD-ROM as described in Appendix A.Connecting to theInternetIf you can browse to the Gateway configuration screens but cannotaccess sites on the Internet, check the following:■ Confirm that the physical connection between the Gateway and thecable/DSL modem is OK, and that the link status LEDs on bothGateway and modem are illuminated.■ Confirm that the connection between the modem and the cable/DSLinterface is OK.■ Ensure that you have entered the correct information into theGateway configuration screens as required by your Internet ServiceProvider. Use the “Internet Settings” screen to verify this.■ For DSL users, check that the PPPoE or PPTP user name, password andservice name are correct, if these are required. Only enter a PPPoEservice name if your ISP requires one.■ For cable users, check whether your ISP required a fixed MAC(Ethernet) address. If so, use the Clone MAC Address feature in theGateway to ensure that the correct MAC address is presented, asdescribed on page 58.■ Ensure that your computers are not configured to use a Web proxy.On Windows computers, this can be found under Control Panel >Internet Options > Connections.Forgotten Passwordand Reset toFactory DefaultsIf you can browse to the Gateway configuration screen but cannot log onbecause you do not know or have forgotten the password, follow thesteps below to reset the Gateway to it’s factory default configuration.CAUTION: All your configuration changes will be lost, and you will needto run the configuration wizard again before you can re-establish your