User guide

Troubleshooting and Repair
149
Troubleshooting
and Repair
Network troubleshooting
Check network connectivity after each corrective action.
Table 9: Network troubleshooting
Layer-2 switch port LED
is off.
Faulty connection
between 3100 ICP
layer-2 switch port and
the patch panel
Check connection
Faulty connections
between PC and IP
phone.
Ensure cables are connected cor-
rectly. Refer to the installation
guide that was shipped with the IP
Phone.
Faulty cable. Ensure that you are using a
straight through Ethernet cable
and not a cross-over cable.
Incorrect NIC card set-
tings.
Check the LAN devices (PC NIC
cards, switches, 3100 ICP switch
settings and Ethernet ports all
have the same Ethernet settings
(auto-sensing, 10BaseT or
100BaseT).
Layer-2 switch port LED
is on but there is no con-
nectivity between the
system and a computer
The computer has not
been assigned an IP
address.
Set the network parameters of the
computer to “Automatically get an
IP address assigned” or to DHCP.
Layer-2 switch port LED
is on but there is no con-
nectivity between the
system and a computer.
Incorrect IP address
assigned to the com-
puter.
Run the winipcfg command
(WIN95/98) or the Ipconfig com-
mand (NT and Windows 2000) to
verify the IP address that is
assigned to your network interface
card (NIC) card.
Verify that you can ping the 3100
ICP and other devices that are on
the LAN from your PC.
Proxy settings for
Browser are incorrect.
Verify that your Browser has the
proper Proxy settings for your net-
work.
Physical path to desti-
nation is faulty.
Check physical path using the
“tracert” command.
3100 Hand.bk Page 149 Monday, August 19, 2002 8:49 PM