3Com 2940, 2941 manual Troubleshooting and Support Resources

Models: 2940, 2941

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TROUBLESHOOTING AND SUPPORT RESOURCES

PROBLEM POSSIBLE SOLUTION

I cannot access my 1. Check all connections. Make sure the cable line is securely connected to

email or Internet

 

the cable jack on the back of the modem. Verify that the RJ 45 cable is

service.

 

securely plugged into both the modem and your network interface card.

 

 

Make sure your power supply is properly plugged into both the modem

 

 

and a wall outlet or surge protector. If your cable modem is properly

 

 

connected, the “Cable Modem Power”, “Cable Modem Status”, and

 

 

“PC Link Status” indicator lights on the front of the modem should all

 

 

be a solid color.

 

 

2. Call your cable service provider to verify that their service is two-way.

 

 

This modem is designed for use with two-way cable plants.

 

 

3. Your network interface card may be malfunctioning. Refer to its

 

 

documentation for troubleshooting information.

 

 

4. You may not have installed TCP/IP properly or the TCP/IP parameters

 

 

provided by your cable company may not be correct for your computer.

 

 

 

The Cable Status

 

The signal from your cable company’s equipment may be too weak or the

LED never stops

 

cable line may not be properly attached to the modem. If the cable line is

blinking.

 

properly connected to the modem, call your cable company to verify

 

 

whether or not a weak signal may be the problem.

 

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3Com 2940, 2941 manual Troubleshooting and Support Resources