General Troubleshooting Tips - Cisco 7962G Administration Manual
For cisco unified communications manager 6.0
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Also See for 7962G:
- Administration manual (235 pages) ,
- User manual (110 pages) ,
- Specifications (5 pages)
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General Troubleshooting Tips
Table 9-1
Cisco Unified IP Phone Security Troubleshooting (continued)
Problem
Phone cannot obtain a
DHCP-assigned IP address
Phone does not register with
Cisco Unified Communications
Manager
Phone status display as
"Configuring IP" or "Registering"
802.1X Authentication Status
displays as "Disabled" (see the
"802.1X Authentication and Status"
section on page
4-33).
Status menu displays DHCP status
as timing out (see the
"Call
Statistics Screen" section on
page
7-12).
Factory Reset Deleted 802.1X Shared Secret
Phone cannot obtain a
DHCP-assigned IP address
Phone does not register with
Cisco Unified Communications
Manager
Phone status display as
"Configuring IP" or "Registering"
Cannot access phone menus to
verify 802.1X status
General Troubleshooting Tips
Table 9-2
Table 9-2
Cisco Unified IP Phone Troubleshooting
Summary
Daisy-chaining IP phones.
Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.0
9-10
Possible Cause
These errors typically indicate that 802.1X is not enabled on the
phone. To enable it, see the
section on page 4-25
phone.
These errors typically indicate that the phone has completed a
factory reset while 802.1X was enabled. A factory reset deletes
the shared secret, which is required for 802.1X authentication
and network access. To resolve this, you have two options:
•
Temporarily disable 802.1X on the switch.
•
Temporarily move the phone to a network environment that
is not using 802.1X authentication.
Once the phone starts up normally in one of these conditions,
you can access the 802.1X configuration menus and re-enter the
shared secret.
provides general troubleshooting information for the Cisco Unified IP Phone.
Explanation
Do not connect an IP phone to another IP phone through the
access port. Each IP phone should directly connect to a switch
port. If you connect IP phones together in a line
(daisy-chaining), a problem with one phone can affect all
subsequent phones in the line. Also, all phones on the line share
bandwidth.
"Security Configuration Menu"
for information on enabling 802.1X on the
Chapter 9
Troubleshooting and Maintenance
OL-12641-01
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Troubleshooting
