Asus rt-ac5300 firmware update

hi
I just recently installed latest update in router rt-ac5300. Now my computer will not connect to wireless. Everything else works fine on WiFi. My question is. Does this latest update change any of the professional settings to something else compared to my last firmware. I forgot to take a picture of the settings. I bought around nov 2017 and updated to latest back then. So whatever firmware version that was I had before I updated.

Thanks