Source note · Setting up 802.1X authentication for Cisco IP phones
Cisco lists an expired or past Operation Completes By time and a mismatch between the CAPF certificate in the phone's ITL file and the current CAPF certificate as causes of LSC installation failure.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Cisco Unified CM
- Subsystem
- CAPF
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 8.0(1) and later
- Checked
- 2026-10-02
Sources
- Configure LSC on IP Phone with CUCM — Cisco Systems · tier 2 current vendor documentation · Troubleshoot
Cite this note
APA
WarmTransfer. (2026, October 2). Setting up 802.1X authentication for Cisco IP phones: source note cisco-phone-8021x-setup-lsc-fail-causes. WarmTransfer. https://warmtransfer.net/knowledge/claims/cisco-phone-8021x-setup-lsc-fail-causes
BibTeX
@misc{warmtransfer-claim-cisco-phone-8021x-setup-lsc-fail-causes,
title = {Setting up 802.1X authentication for Cisco IP phones: source note cisco-phone-8021x-setup-lsc-fail-causes},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cisco-phone-8021x-setup-lsc-fail-causes},
note = {Source note cisco-phone-8021x-setup-lsc-fail-causes, checked 2026-10-02}
}