AR-750 DFS for home network cannot change timezone

Just reset my ar 750 and it wont connect to my home wifi on repeat. the network is greyed out DFS.

Looking into it i need to udpate the timezone however every time i click apply it doesnt do anything. The date is set to october?

I cant seem to get it to change any ideas?

Changing timezone does not help.

DFS is not supported in the firmware.