I have a 1231 AP (AIR-AP1231G-A-K9) with an external antenna (AIR-ANT2506). It used to work just fine with the AIR-ANT4941 2.4GHz antenna but we needed to extend the coverage, when we attached the AIR-ANT2506 antenna there is intermitent connectivity no matter if users are close to or far from to the AP. There is no objects which are blocking the signal nor other RFI. Is the antenna the right one for the AP? Any clue about why this is happening?
thank you in advance for your help