Cisco's procedure for 802.1X authentication problems on 8800 phones is to verify that the required components are configured and that the shared secret configured on the phone matches the one on the authentication server.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Cisco IP Phone 8800 Series
- Subsystem
- 802.1X
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Cisco IP Phone 8800 Series Administration Guide for Cisco Unified Communications Manager - Troubleshooting — Cisco Systems · tier 2 current vendor documentation · Troubleshooting Procedures > Identify 802.1X Authentication Problems
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting IP phones that do not get a voice VLAN or DHCP options: source note ip-phone-dhcp-vlan-troubleshooting-dot1x-shared-secret. WarmTransfer. https://warmtransfer.net/knowledge/claims/ip-phone-dhcp-vlan-troubleshooting-dot1x-shared-secret
BibTeX
@misc{warmtransfer-claim-ip-phone-dhcp-vlan-troubleshooting-dot1x-shared-secret,
title = {Troubleshooting IP phones that do not get a voice VLAN or DHCP options: source note ip-phone-dhcp-vlan-troubleshooting-dot1x-shared-secret},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/ip-phone-dhcp-vlan-troubleshooting-dot1x-shared-secret},
note = {Source note ip-phone-dhcp-vlan-troubleshooting-dot1x-shared-secret, checked 2026-10-02}
}