Nortel Networks NN43001-504 - Manual (Page 122)

122 Troubleshooting
This information helps to determine if the most recent software version is
running. This information assists Nortel Technical Support in troubleshooting
software problems.
Speed or duplex mismatch
A duplex mismatch on the WLAN can cause the WLAN IP Telephony
Manager 2245 to not operate properly. Double-check WLAN connections
and interfaces to ensure that they are all configured as full-duplex.
In rare instances, the message Speed or Duplex mismatch error can occur
during the bootup sequence of the IP Telephony Manager 2245.
If this situation occurs, verify all devices connected to the WLAN IP
Telephony Manager 2245 are configured correctly and no duplex mismatch
is found. If all configurations are correct, reboot the IP Telephony Manager
2245. The error message must be cleared.
Nortel recommends that you
• do not configure the Ethenet Link, on the SVP-II Configuration screen,
to auto-negotiate.
• use either 100/full or 10/full, as is appropriate for the network.
• configure the ethernet switch port to match the 2245 Ethernet Link.
Troubleshooting the WLAN Application Gateway 2246
For information about troubleshooting the optional WLAN Application
Gateway 2246, see
Appendix "WLAN Application Gateway 2246" (page
147) "Configuring network parameters" (page 155) .
Troubleshooting the handset
Transmission problems can result from any number of factors originating
from the wireless LAN. Wireless handsets can exhibit transmission
problems in several ways. They can cease functioning properly, display
error messages, or display incorrect data. When using and troubleshooting
wireless handsets, consider the following problem sources to determine the
best method of approaching a specific situation.
Context
When troubleshooting a problem with a wireless handset, it is important to
determine the context of when and where the problem occurred. Context
includes the following:
• Was the wireless handset on an active call?
• Was the wireless handset moving or stationary?
• Was the wireless handset powering on or powering off?
• Was PTT being used?
Nortel Communication Server 1000
WLAN IP Telephony Installation and Commissioning
NN43001-504 01.02 Standard
Release 5.0 15 June 2007
Copyright © 2004-2007, Nortel Networks
.