Cannot downgrade EAP690HDv1 from 1.0.3Beta back to 1.0.1 fails with "The upgrade file is invalid. Please select a correct file."

I sent this to support, but wanted to update here: Hello. Sorry for the delayed reply. Been busy. So I was able to upgrade the Linux Software to 5.13.10 again this morning and I am happy to report...

Thought I'd give the new beta a shot since 5.12.x was a failure. Same problem: nothing will connect to 6GHz. But as soon as I downgrade back to 5.9.x everything will be right as rain. Very, very...

So, I saw in the app new firmware was available (I was on 1.0.11 Beta) for my 670s so I applied it and I came here to see what was released, but I can't find a reference to it anywhere...so how did I...

@IamMurphy my man! thanks again!

@Virgo Thanks, but my question was more to why / what is the rationale behind having a premium WiFi6E AP that only has 80MHz 5GHz channels. I know if I had looked closer I could have seen those...