3Com 8R-002700-00 Getting Started Manual

Contents

3Com 8R-002700-00 Getting Started Manual Manual pdf 45 page image

7 TROUBLESHOOTING AND S UPPORTRESOURCESTroubleshootingMy computer wentinto "power save"mode. When it cameout of power savemode, my screen wasfrozen.If the upstream (TELCO) connection is active when a computer goes intopower save mode, the computer may freeze when coming out of powersave mode. Either hang up the TELCO modem before your computergoes into power save mode or disable power save on your PC. If youchoose to disable power save, disable it in both the Windows ControlPanel and the BIOS setup. To disable power save in Windows, clickWindows Start, point to Settings, and click Control Panel. Double-clickthe Power icon and select “OFF” in the "Power Management" box. ClickApply. To disable power save in the BIOS setup, you usually must press afunction key while booting up to enter the setup menu. Consult yourcomputer's manual for exact instructions.My cable modemscans for an activechannel, pauses onan active channel, butinstead of locking onto it, continues toscan for activechannels.Your cable modem may be assigned to IRQ 12, which is often a problem,though Windows will not report it as such. Right-click the My Computericon on your desktop and then click Properties. Click Device Managerand then click Network Adapters. Double-click 3Com HomeConnectCable Modem TMI and then click Resources. Look for "InterruptRequest" in the “Resource Type” column. If the number listed to the rightis 12, you will need to move the cable modem to a different interruptrequest (IRQ). See the troubleshooting issue with the heading “How do Ifree an IRQ for use by the cable modem?" later in this section for moreinformation.I installed the cablemodem, but it doesnot work.n Your cable modem may have been installed with an IRQ conflict.Right-click the My Computer icon on your desktop and then clickProperties. Click the "Device Manager" tab at the top of the"System Properties" screen. Look for a yellow exclamation point overthe 3Com HomeConnect Cable Modem TMI in the “Networkadapters” category. If the modem has a yellow exclamation point, it