Here is the error message generated by KStars:
2017-07-30T15:03:35: Handshake failed. 2017-07-30T15:03:35: Failed to communicate with the mount, check the logs for details. 2017-07-30T15:03:35: Write Error: Broken pipe 2017-07-30T15:03:35: Read Error: Connection reset by peer 2017-07-30T15:03:35: Initializing Celestron using Kx CMD... 2017-07-30T15:03:35: Connection successful, attempting handshake... 2017-07-30T15:03:35: Connecting to 1.2.3.4@2000 ...