I've installed 4.5.5 on a new Windows Server. The TeamCity Build Agent Service and TeamCity Web Server services are both running and I can access the TeamCity web site fine. However in the Agents tab my Agent always displays as "disconnected".
When I look at the logs for the buildAgent, I can see some errors which seem to relate to upgrading (refer attached).
How should I go about debugging this to get the Agent to connect?