I am facing the issue randomly, seems like communication issues b/w slave and master.. this was working fine on a holiday and getting frequent issues on a working day, if i restart the slave , its working for that instance and error is coming back agter 1 or 2 builds.

pool-1-thread-25 for JNLP4-connect connection to server ip:59256 i
d=13184, WRITE: TLSv1.2 Handshake, length = 235
pool-1-thread-25 for JNLP4-connect connection to server ip:59256 i
d=13184, READ: TLSv1.2 Alert, length = 2
pool-1-thread-25 for JNLP4-connect connection to server ip:59256 i
d=13184, RECV TLSv1.2 ALERT: fatal, handshake_failure
pool-1-thread-25 for JNLP4-connect connection to server ip:59256 i
d=13184, called closeSocket()
pool-1-thread-25 for JNLP4-connect connection to server ip:59256 i
d=13184, handling exception: javax.net.ssl.SSLHandshakeException: Received fatal
alert: handshake_failure
Jul 06, 2017 11:38:00 AM com.microsoft.tfs.core.httpclient.HttpMethodBase execut
e
SEVERE: IO exception executing POST
javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure