I genuinely don’t know what to do.

Router is within arms reach, drivers and computer are up to date, Insperion 15 3520, everything else on the network including other computers work fine, tested on three other wifi networks and mobile hotspot. I'm out of ideas. Wifi kinda just… stopped working for this computer a few days ago and nothing I've done has been able to get it back. I'm sorry to ask, but does anyone have any ideas on what I could do, or is this computer just lost? Thanks.