@duetino said in Is it possible to use Telnet on DUET2 for slicer?:
Well the question is CAN I somehow use it as serial communication line in repetier host or ANY other software?
In theory, yes. However it's not something I would recommend because if it turns out to be not 100% reliable when GCode is streamed via Telnet, we wouldn't be very interested in fixing to because the Telnet capability is so rarely used. It would also have the same disadvantages as streaming over USB, e.g. taking longer to execute a pause because all commands queued via the interface would have to be completed first.