Sometimes I got this error when I try to build a project in TFS .
 {{Started by user NathanLiao
Running as SYSTEM
Building in workspace D:\JenkinsItem\workspace\MAIN-test
Querying for remote changeset at '$/test/MAIN/test' as of 'D2020-05-05T02:56:46Z'...
FATAL: com.microsoft.tfs.core.exceptions.TECoreException: Connection timed out: connect
java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at com.microsoft.tfs.core.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:138)}}