Hello Rodrigo,
As Robert mentioned above, we will need to know what firmware version each is running on. We would also need to know if you've configured one or both as virtual controllers. It seems like you have the AP7522 set up as a virtual controller, but we'll need your confirmation on this. If this is the case I would recommend you disable this feature and just use both as independent APs.
Regards,
Chris
Christoph S.