I only have logs from the point of the restart. I think the logs prior to that were gone on boot if I remember correctly. It was a single switch setup before. We had only installed the stacking modules, and plugged in the stacking cables. It was s...
We just had the exact same problem with a WS-C3650-48PQ running 16.3.7. Added stacking modules and as soon as we added the stacking cables the switch restarted. We had not yet connected the stacking cables to second switch which was powered off.