Please help with weird problem

[ImRonBurgundy]

I just started experiencing a weird problem with my PS5 that I'm hoping someone can help with. Long story short, it suddenly won't connect to my wifi, even though it's been connected to it since I first got it last year. It will only connect with ethernet cables. What's worse, if I try to connect via wifi, the dualsense controller then stops working and I have to use mt tv remote to switch back to LAN connection. If I then restart my PS5, the controller will work again. Has anyone else experienced this? Why would losing the wifi connection cause the controller to stop working?

Note: My computer, tablet, phone are all connected to wifi with no problems. I've tried restarting the router, modem, etc, without success.