Cisco 7911G - IP Phone VoIP User Manual

Chapter 9 Troubleshooting and Maintenance
Troubleshooting Cisco Unified IP Phone Security
9-14
Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.0
OL11954-01
802.1X Enabled on Phone but Not Authenticating
Phone cannot obtain a
DHCP-assigned IP address.
These errors typically indicate that
802.1X authentication is enabled on the
phone, but the phone is unable to
authenticate.
1. Verify that you have properly
configured the required components
(see the “Supporting 802.1X
Authentication on Cisco Unified IP
Phones” section on page 1-23 for
more information).
2. Confirm that the shared secret is
configured on the phone (see the
“802.1X Authentication and Status”
section on page 4-43 for more
information).
– If the shared secret is configured,
verify that you have the same
shared secret entered on the
authentication server.
– If the shared secret is not
configured, enter it and ensure
that it matches the one on the
authentication server.
Phone does not register with
Cisco Unified Communications
Manager.
802.1X Authentication Status
displays as “Held” (see the “802.1X
Authentication and Status” section
on page 4-43).
Status menu displays 802.1X status
as “Failed” (see the “Status Menu”
section on page 3).
Table 9-1 Cisco Unified IP Phone Security Troubleshooting (continued)
Problem Possible Cause

Cisco 7911G - IP Phone VoIP Specifications

General

Brand	Cisco
Model	7911G - IP Phone VoIP
Category	IP Phone
Language	English