Four hours of swearing at servers, kicking switches and rebooting printers and terminals and all because of a Windows Update.
Our entire network uses 802.1X authentication with certificates and this morning I arrived in the office to find all the Teradici terminals and network printers were failing to authenticate properly.
We hadn’t changed anything in the NPS policies so has a certificate expired? The errors in the event logs were constant
Event ID 36887 – A fatal alert was received from the remote endpoint. The TLS protocol defined fatal alert code is 42.