If the client encounters some error handling XML-RPC requests then it will present the user with the error: > ThinLinc login failed. > (The SSH connection succeeded, but the ThinLinc server connection failed. > Perhaps this server doesn't run a ThinLinc server? Which isn't really true as we are now at a point where we know we are talking to a ThinLinc system. This is what's seen in the client log at this point: > 2021-03-26T12:22:00: ssh[E]: THINLINC-LOGIN: HELLO 4.12.1post > 2021-03-26T12:22:00: ssh[E]: THINLINC-LOGIN: CONNECTED MASTER > 2021-03-26T12:22:00: My hardware address is 00D861420289 > 2021-03-26T12:22:00: Calling XML-RPC method 'get_capabilities' The issue was seen when thinlinc-login had a bug that caused it to crash after getting the request.