Hi Manual
I understood that you were using a WLAN ACL. this is not a problem because it is limited to the radio level. concerning the MC92N0, there are not many parameters, and by default with an IP address in DHCP = I have no problem of WEB connection ( same AP version, MC92N0 OS = 10.57.22).
The only options that could be problematic are Gateway and DNS configuration.
you can test that if you want.