@DVair I mean more like the bad one was corrupting the EasyMesh when it was added. I removed from EasyMesh the good one and placed it in the position of the one I am having issues with. It added to...

I'll add on that maybe second BE550 actually is bad and was causing interference. I since noticed it had gone offline from EasyMesh in the meantime. I removed that one from BE800 and was able to join...

I called support about a second BE550 unable to EasyMesh being faulty, but now I think it's an issue within the BE800 firmware. I bought a BE800 and a BE550, the BE550 essentially for a wireless...