I have an instance at a Fire Station on Spectrum Cable with 2 buildings, 1 OEAP602 in each building. Both 602's link and function as expected to a common WLC on 8.3.150.0 code. In the process of retiring all 602's with 1815t's supported on a different (temp) WLC on 8.5.151.0 code. It would seem that 8.5 code does NOT support more than 1 nat'd device per IP. thus which ever AP links first can open a DTLS tunnel. I have oeap1810's also and I can link a pair on 1 IP in 8.3 but not 8.5. I can target each AP to a different WLC on 1 IP, say 1810 to 8.3 and 1815t to 8.5 giving me a one for one at the WLC. Unfortunately when all done, there will only be 1 nat'd controller, not 2.
Anyone know of some secret cmd in 8.5 code?