3Com 2940, 2941, Инструкции по установке и эксплуатации

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T
ROUBLESHOOTING AND
S
UPPORT
R
ESOURCES
23
PROBLEM
I cannot access my
email or Internet
service.
The Cable Status
LED never stops
blinking.
POSSIBLE SOLUTION
1.
Check all connections. Make sure the cable line is securely connected to
the cable jack on the back of the modem. Verify that the RJ 45 cable is
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 signal from your cable company’s equipment may be too weak or the
cable line may not be properly attached to the modem. If the cable line is
properly connected to the modem, call your cable company to verify
whether or not a weak signal may be the problem.