I am presently running kstars remotely using a Raspberry PI3 server (running Ubuntu Mate 16.4) interfaced to a Celestron CGEM DX mount, a SBIG STT-8300 CCD with a Self-Guiding Filter Wheel and a Robo Focus focus motor. This setup has been working reasonable well, except for occasional hiccups.

Recently I have also tried the kstars-bleeding version, which has some nice improvements over the regular kstars. However, it appears to have a serious problem, at least with my particular setup. The camera client upload is very unreliable. Most of the time it does not work . Kstars says it is downloading the data from the server but nothing comes across.
If, on the other hand, I direct the camera data upload to stay locally within the server then it seems everything is working, except that I would have to do a manual upload to the kstars client in order to get to the image data - which is obviously not practical.

Any idea about this problem?