Ok, I've gotten closer to a possible reason:

AF3 worked great until suddenly it caused Ekos to crash. I've so far installed Ekos using the AstroPi3 script. I decided to test out AstroBerry to see if that made any difference. Then AF3 connected without problems and everything was great again, until I hit the good old:

Then the AF3 wouldn't connect anymore and caused Ekos to crash. I decided to check the log files, but they weren't there (logging was turned on). I then tried turning logging off and suddenly the AF3 worked again and no more Ekos crashes. Turning logging back on caused yet another crash! I've also tried the AF2 driver (basically the same as the AF3 driver) and that worked once in a while with logging and sometimes it just crashed with Ekos.

I'm now running the AF3 driver without any logging turned on. That ran all night without problems. I wrote to Pavle Gartner (the guy behind DeepSkyDad) and asked if he updated the AF3 driver, but he told me that it's still the same version as always.

So, could it be a bug in the logging code which clashes with the AF3 (and AF2) driver?

Anders

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