For real. That's no joke. Reset your router to default. Set it into AP mode and change the wifi password so only your headset is connected. While you are in yhere remember to set the channel width to 80mhz. Turn the VPN connection on your computer if you subscribe to one. Repair your PC Oculus software or at very least make sure the PC Oculus software is still linked with your headset, it's the process where you have to input a code in your headset to match the code on the pc. Sometimes that resets and you have to relink. These are the common issues I have had when airlink just pisses off and stops working. Our hobby is a niche of a niche, it sucks but rewarding when you figure it out.