Woohoo... @jonas and the TP-Link guys fixed my issue. They had a look at all the wireshark traces I took and figured out that the issue I had was with some of these client devices which have legacy...

Thanks for the private message @jonas . I sent you the pcap traces. As I communicated there, it looks like the issue is related to having the 40 Mhz channel bandwidth enabled, not really the "N"...

@jonas : Could you please let me know how to share the pcap traces with you so you can try to determine what's the incompatibility between EAP225 and the IRD? I am having a ton of intermittent...

@jonas , I got the pcap trace of the internet radio device that is having issues using the TPLINK EAP 225 WiFi when BGN is enabled on the 2.4ghz radio. I was able to see all the beacon frames and...

Have you tried configuring your 2.4ghz radio to only do 802.11 B/G? In my case that allowed some clients to connect... But, I agree, the EAP225 has issues. I do not know if they are hardware or...

Yes, so far that's the only one with this problem. I do see other connectivity problems that I am trying to work through a little bit further (before reporting theose) with WiFi USB Dongles.