Can you try accessing the AP via SSH using a tool like Putty?
If so check the version of code (get version)
Also - Hardware factory default can be a bit tricky. The AP operating system must be running before you hold the hard reset button (for about 15 seconds). Power up the AP and wait till the power LED is solid green or about 5 minutes, then hold the Factory Default button for 15 seconds. You may want to try this a couple of times.
AP's that have been controlled by ZD or SZ controllers will have WEB pages disabled. Factory default should restore the GUI or you can enable it via the CLI (set https enable)
Another suggestion, connect the AP to a switch port that provided AP's via DHCP (on untagged VLAN for the switch port). Then change your PC to be in the same subnet and try to access SSH and then GUI. SSH should work regardless of version.
I hope this information is helpful
thanks for choosing Ruckus Networks, a Commscope company.