RAX 120 authentication issues

I also have rax120 and have to reboot weekly because nearly 20 devices i have stop re-joining the wifi due to "incorrect password". the devices that do not drop off wifi do STAY connected with no problem. i can disconnect every device from wi-fi and try to re-join them when the router has bugged and it wont allow any of the 20+ devices to connect. its almost like the router forgets what its wifi password is. i run V1.0.1.90 but i dont know if issues started before or after the update. i also tried turning AX off. some forums users say to use a 12 charater password and turn off smart connect among other things but at this point i think its something netgear should look into due to the amount of complaints i have found from netgear fourms to even amazon reviews.