Cisco 7941G Administration Guide - Page 241

Chapter 9 Troubleshooting and Maintenance Troubleshooting Cisco Unified IP Phone Security Table 9-1 Cisco Unified IP Phone Security Troubleshooting (continued) Problem Possible Cause 802.1X Enabled on Phone but Not Authenticating Phone cannot obtain a DHCP-assigned IP address These errors typically indicate that 802.1X is enabled on the phone, but the phone is unable to authenticate. Phone does not register with Cisco Unified Communications Manager 1. Verify that you have properly configured the required components "Supporting 802.1X Authentication on Cisco Unified IP Phones" section on page 1-23. Phone status display as "Configuring IP" or "Registering" 802.1X Authentication Status displays as "Held" (see the "802.1X Authentication and Status" section on page 4-50). Status menu displays 802.1x status as "Failed" (see the "Call Statistics Screen" section on page 7-16). 2. Confirm that the shared secret is configured on the phone (see the "Security Configuration Menu" section on page 4-37 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. 802.1X Not Enabled Phone cannot obtain a DHCP-assigned IP address Phone does not register with Cisco Unified Communications Manager These errors typically indicate that 802.1X is not enabled on the phone. To enable it, see the "Security Configuration Menu" section on page 4-37 for information on enabling 802.1X on the phone. 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 4-50). Status menu displays DHCP status as timing out (see the "Call Statistics Screen" section on page 7-16). Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.1 OL-14620-01 9-13