Martin Gleim replied to the topic 'CEM40 usb drops connection' in the forum. 3 months ago

Hi, I had a similar problem. First the CEM 40 worked flawlessly with raspi and stellarmate. It was about a year ago. I had months of cloudy nights, few clear skies. One clear night the CEM 40 was not seen by the raspi 4, In the meantime I had updated the firmware of the CEM, had another kstars version etc. First I downgraded the firmware of the CEM, installed older kstars and indi versions, tested legions of usb cables. I have another pi..... tried 3 different power-supplies, other computers. Result: raspi 4 with raspbian sees the CEM, Windows computer with ascom sees the CEM, raspi with stellarmate doesnt see the CEM, Mac sees the CEM. With help of Jasem Mutlaq I tried some kind of debugging, prduced endless protocoll files but no new findings... One day I placed an old powered usb - hub between raspi and CEM: It works.[/strike]

Read More...