Good to hear you are operational again. After all that, does either unit indicate that it is now on SW 2.8? I’ve run the update multiple times and it still indicates the version is still SW 2.7 on each unit even though the updates appear to run through normally. I haven’t had your connectivity issue though. I use hqplayer, not Roon Ready.
I, and possibly several others here, would encourage you to follow through on your Extreme thoughts
. There appears to be a shortage of dual CX+EX and Extreme owners out there who are willing to do a direct compare.