Hi, i do have the same issue with Archer 1200 EU Wifi Router. Using MAC, it says cc = "null" in diagnostics. And no way offered in admin portal to change to specific code. However: I noticed that some tp-link Router like Archer C7 do offer selection of region in there admin portal, supposing they do the country code setting in the back correctly than. I believe there is a lack of feature in firmware missing to just offer country code selection if not offered with your product. Wonder why this is not baseline in all tp-link wifi router products. I have involved tp-link support by email this evening, - Will see what they guys do offer as solution. From my understanding somebody has to raise a "story" in there product backlog and assign this to a dev sprint. - will share response of tp-link support soon i got a reply. Cheers A "grumpy" user