For some reason I can no longer connect to my Netgear Nighthawk x8 router wirelessly with cell phones, laptops, & Tablets. The funny thing is that my RING camera system, RING alarm system, and Amazon fire tv devices still connect wirelessly with no issue. I downloaded the latest firmware update. Still does not work. I get "authentication error" when trying to connect with cell phones and laptops. I get "invalid password" with an apple Ipad. I reset my modem and router no less then 10 times. No change. I factory reset my Netgear Nighthawk x8 and had to re set it up. Still same issue. Any ideas short of resetting and unplugging again? I cannot connect to either 2.4, 5 and guest wifi connections. They do show up as available connections. It is password protected and I put the correct password in. The guest connection I put no password on it. I did run anti virus software ect. (multiple times/programs) nothing found. I have windows 10 computer.