title: Teamcity build agent in disconnected state
body: <p>I am running teamcity on Linux server, and it was working completely fine. Once I reboot the server machine and it stopped working. I managed to start the teamcity server using runAll.sh command, but the build agent stays in "disconnected" state. The inactivity reason is being shown as 'server shutdown'. I tried to start the agent using 'agent.sh stop' and 'agent.sh start' but it does not seem to work. Could not get anything meaningful from the logs. </p>
  
  <p>Kindly help.</p>
  
  <p>Thanks</p>