I have (2) EAP225's in my home, both in a large living room but approximately 30' apart, ceiling mounted. I have 6 recent model iOS devices connected; 1 Windows 10 on an older Linksys USB adapter...

@Philbert Crystal clear, thanks for everything in this thread

Maybe I can answer that after running a 2.4 Radio scan :) Couldn't we deduce that Ch 10 on 20MHz is ideal?

@Philbert I did want to get your opinion on this however, as well. I changed channel widths as suggested and chose channel149 on both 5GHz WAPs as there were no other Channels in the Range suggested....

@Philbert No matter for that Windows PC as it'll be hard wired into the switch closet at the end of the day. As long as my (iOS) clients are happy with the 5GHz band you helped me dial in, I think...

Also, I ran a scan of 5GHz Can you interpret it and suggest any remediation?