Server unable to connect (or stay connected?) to printer

kwhiting

I am seeing these messages in server.log when my printer is connected.

2017-09-20 17:03:49: Webserver started.
2017-09-20 17:03:50: Connection started:Prusa I3
2017-09-20 17:03:50: Reset printer Prusa I3
2017-09-20 17:04:00: No valid response seen within 10 seconds from printer, restarting connection
2017-09-20 17:04:00: Connection closed: Prusa I3
2017-09-20 17:04:01: Connection started:Prusa I3
2017-09-20 17:04:01: Reset printer Prusa I3
2017-09-20 17:04:11: No valid response seen within 10 seconds from printer, restarting connection

The printer restarts every 10 seconds (LCD recycles).  unplugging the printer I get:

2017-09-20 17:13:14: error: Reading serial conection failed: The I/O operation has been aborted because of either a thread exit or an application request. Closing connection.

if I plug the printer back in it goes back to the restarting connection message.

Any pointers as to what is wrong?  Windows 10 Microsoft Surface Book, Prusa I3 printer

Repetier

Did you select the right firmware and baud rate? No valid response mean either no valid answers due to baud rate or firmware does not understand commands e.g. because you have set it to repetier-firmware and prusa is running marlin, which does not understand binary commands.