Cisco 9971 - X Enabled on Phone but Phone Does Not Authenticate

SeeIf all the following conditions apply,
802.1X Not Enabled, on page 312
•
Phone cannot obtain a DHCP-assigned IP
address.
•
Phone does not register with Cisco Unified
Communications Manager.
•
Phone status displays Configuring IP or
Registering.
•
802.1X Authentication Status displays
Disabled.
•
Status menu displays that the DHCP status has
timed out.
Factory Reset of Phone Has Deleted 802.1X Shared
Secret, on page 313
•
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 .
•
You are unable to access phone menus to verify
802.1X status.
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.
Solution
To resolve this problem, check the 802.1X and shared secret configuration. See Identify 802.1X Authentication
Problems, on page 323.
802.1X Not Enabled
Problem
The phone does not have 802.1X configured.
Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager
10.0
312
Cisco IP Phone Security Problems