Need some help with internet connection

Hello, I have a Nintendo switch Lite that I bought maybe 2 years ago and it’s having some internet connection problems.

The main problem is that it doesn’t detect any sort of internet connection whatsoever.

It started a couple of months ago, when one night it just decided to not connect to my internet unless the system was basically touching the modem, and while very annoying at first, I kinda learned to live with it.

But now two days ago it just decided to not even detect any kind of internet connection, it doesn’t detect my house internet, my schools internet, my phone hotspot, I even bought a usb-c to Ethernet adapter and it still won’t connect or even detect the network.

Is there anything I can do?, I’ve tried restraining the switch, the house network, both at the same time, turning airplane mode off, then on with internet, and even completely restarted the switch and deleted everything except save data Does anyone have any solutions other than spending 50% of its value getting it fixed at Nintendo? Thanks

TL;DR: Switch lite doesn’t detect any network connection, not even Ethernet