Reporting success(ish).... Spend another 8 hours playing with this, got it to work but not without caveats:
Did a squeaky clean install based on Matts new 4.0 deb package and using the 0.54b interceptor with the latest GIT commit on the PASSKEY. - listen mode works using ecowitt-client - that was a RTFM error where the /data/report/ path for the web-call on the station was changed - setting this back to the standard path made this work - so happily logging data again. Btw, my system is running EasyWeather1.4.9 firmware. - sniff mode is broken - no success with pylibpcap nor with pypcap. I had to change the source code to make current pylibpcap - which is available for ubuntu as package python3-pcapy work at all as syntax has changed but I am not seeing any packages on the sniffer interface - which leads me to believe that there is a more fundamental problem with python3 and pcap in general. Just to test out this theory, I installed pyshark, which is another capture package and that one fails as well as soon as it tries to open an interface (goes into timeout). I am going to continue to dig here for a while but will likely post a bug on the Ubuntu 20.04 forum as soon as I have enough evidence gathered. Thanks for all your help Max -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/53fd4bf4-c5f9-4cba-8701-7b903ccbcecd%40googlegroups.com.