Hi. After 10 hours of troubleshooting I managed to reestablish my connection. It was most likely a docker network issue. I had changed the MTU on my host and the Docker0 bridge connection did not like this. It took hours to find the culprit but now with MTU at 1500 the connection to Jottacloud in the Test Connection section works again. Running the cloud update now to see if it works to completion with sucess. Thanks.