Although it connected yesterday and I successfully synced folders, I still get the reconnect loop messages in the log every second.
Also, today on my phone the log constantly says “connection refused”. I filled in the dyndns address (that worked perfectly yesterday): 1more.crabdance.com:22000 I checked if this port is open via: https://www.yougetsignal.com/tools/open-ports/
To get all of this working again: I change the server address on my phone to the local IP of the server 192.168.88.10:22000. The phone and host connect, start syncing. Now I disable wifi and fill in 1more.crabdance.com:22000 and magically, the phone and host connect and continue syncing…
What could be the problem here?
1more.crabdance.com is a CNAME forward to my mikrotik router address (that does the dynamic lookup).