I am having an issue with using a smart card (SC) to authenticate an SSL VPN using Cisco Anyconnect. SC authentication worked until recently. I am able to SC authenticate from other windows 10 and MacOS Monterey 12.6 systems so I dont think the issue is the vpn profile or firewall configuration. Also, using the same SC and MacBook Pro where anyconnect is failing, I am able to authenticate to websites using the certs stored on the SC so it seems the system recognizes the SC for use with other applications.
Anyconnect version: 4.10.05111
MacOS: Monterey 12.6
How do I troubleshoot and identify the problem with Anyconnect using the smart card?
Output from the firewall logs are below for a working and non-working session using 2 different MBPs both using the same OS and anyconnect versions.
###SESSION NOT Working from MacOS Monterey 12.6 MacBook Pro using smart card
 Session Start
 New request Session, context 0x0000005598b5e6e8, reqType = Other
 Fiber started
 Creating LDAP context with uri=ldaps://IP.11:636
 Connect to LDAP server: ldaps://IP.11:636, status = Successful
 supportedLDAPVersion: value = 3
 supportedLDAPVersion: value = 2
 LDAP server IP.11 is Active directory
 Binding as <<SERVICE ACCOUNT>>
 Performing Simple authentication for <<SERVICE ACCOUNT>> to IP.11
 LDAP Search:
Base DN = [DC=xxx,DC=yyy,DC=zzz]
Filter = [UserPrincipalName=<Unknown>] <-- I think this is the issue with the session failing, Not sure how to TSHOOT
Scope = [SUBTREE]
 Search result parsing returned failure status