Xbox LAN cable no internet?

I connected my Xbox to my internet normally. I have had an internet LAN cable for my Xbox one for a long time. But for a few days now, when I plug the LAN cable into the Xbox, I simply no longer have a Wi-Fi connection. Before that, I always had a strong connection thanks to the cable, but now I can't get the Internet anymore and I don't know why.

I always unplug it and connect wirelessly to my Wi-Fi again.

does anyone have any idea what i can do?

Maybe the cable is broken?

No, that should still be whole