Hello,
I have 2 rb300 ppc running latest version of MT. Problem I am finding is that with one setup as station and one as AP both with same country settings etc for some reason the station will only associate on certain channels. For example it will only associate on high band 5.8 but not on low band 5.3. There is also some nanostations and they have same issue? Only thing I havent swapped out is the radio card but wasn’t aware of any compatabillity issues. I think one has an SR5 and the other a MT r52.