My laptop intermittently reported:
Test-ComputerSecureChannel
False
The failures persisted for periods ranging from several minutes to more than 40 minutes, then returned to True without any related action on my part (computer-account repair, password reset, domain rejoin, DNS change, or VPN reconnection).
Extensive testing established that the workstation’s domain trust, computer-account password, DNS resolution, routes, time synchronization, Active Directory ports, LDAP access, Kerberos reachability, SMB access, and Netlogon dynamic RPC connectivity were operational.
