Cisco 7975G Troubleshooting And Maintenance page 10

802.1X Enabled on Phone but Phone Does Not Authenticate
If all the following conditions apply,
• Phone cannot obtain a DHCP-assigned IP address
• Phone does not register with Cisco Unified
• Phone status display as "Configuring IP" or
• 802.1X Authentication Status displays as
• Status menu displays DHCP status as timing out
• Phone cannot obtain a DHCP-assigned IP
• Phone does not register with Cisco Unified
• Phone status display as "Configuring IP" or
• Cannot access phone menus to verify 802.1X
802.1X Enabled on Phone but Phone Does Not Authenticate
Problem
The phone cannot authenticate.
Cause
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
information).
2. Confirm that the shared secret is configured on the phone (see
for more information).
802.1X Not Enabled
Problem
The phone does not have 802.1X configured.
Cause
These errors typically indicate that 802.1X authentication is not enabled on the phone.
Troubleshooting and Maintenance
10
Communications Manager
"Registering"
"Disabled"
address.
Communications Manager.
"Registering."
status.
• 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.
Troubleshooting and Maintenance
See
802.1X Not Enabled, on page 10
Factory Reset of Phone Has Deleted 802.1X Shared
Secret, on page 11
802.1X Authentication
802.1X Authentication and Status Menus
for more