Hello Alain,
I have the exact problem as Ben
I am getting the message as below;
2016-08-26T19:14:46: Error connecting to Telescope. Telescope is offline.
2016-08-26T19:14:46: Failure. Telescope is not responding to ACK!
2016-08-26T19:14:36: Testing telescope connection using ACK...

I am using ALT_AZM mount, also I did the :Gc command fix.
After many connection attempt I got connection a couple of times, but no success after disconnect it.

I am using ubuntuMate on Raspberry Pi2, only indiserver working on this side, connecting via Kstars on PC
OnStep is working on Teensy 3.2, by the way OnStepESPServer and Android app is working fine

regards,
Kemal

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