Ok, so this is awkward... It turns out that I've accidentally switched between the optic converter and the router power outlets, so the router didn't get the Amps it needed for the WiFi... Everything...

Hi @Kevin_Z Thanks for the quick reply, I've tried everything you said already but sadly nothing helped. I haven't upgraded it lately, and I think there must have been a power outage or something...

Hi So the wifi stopped working and when I enter the router it looks like the wifi setting are gone.... Ive tried resetting it but didnt help...