Ran into the connection cannot be established error, decompiling thru it is a date check in the openwebnet-lib library. Since the source code for the library is not part of GitHub its not a straight forward fix. Did a byte code edit and reassemble back and the new one seems to be working for me. The new expiry is now 2021-03-14 15:00:00. Pushed the jar here [https://github.com/jebu/openhab2-addons/releases/tag/own-2.5.0.M3-patch]. Hopefully it will suffice till @massi puts out an official release.
