I can not seem to get the connections stable and at times can not connect to a ip address on a re315, since I added a third re315. I have a nx200 in the main room. One re315 is almost looking at it, n

I am trying to setup easy mesh between re315 and nx200 but the re315 just see itself as a range extender and puts _EXT on the end of the ssid I have upgraded firmware to 1.0.30 and hard reset it and i