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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

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