I have a 5508 controller and about 30 AIR-CAP3502I-A-K9 access points across 30 offices in the USA. We have a new UK office and purchased an AP locally to avoid shipping from the US, the UK AP is an AIR-CAP3502I-E-K9. When I try to add the UK country code to the controller it tells me I have to disable 802.11A and B wireless networks. I obviously don't want to do that. Is there a way to connect a -E AP to an American controller??