Hello Aviv,
All these APs are dual radio units that allow you to use the 5GHz radio for meshing and the 2.4GHz radio for access WLAN traffic (recommended). Please advise why you'd like them both to be configured on the same radio.
Moreover, which radio are they currently configured on: 2.4 or 5GHz?
Many factors may influence signal degradation, so when you say that the AP7532/AP6532 are "not stable", what exactly do you mean?
Regards,
Chris
Christoph S.