I have a 4g router and cloudflare just blocked me

Since some drunk driver ran into a telephone pole nearby, I lost my wired internet connection and have to use a 4g router sent by the internet provider. It's been a month, everything was going fine.

Yesterday suddenly everything refused to work, I eventually found out that it was the DNS not working. I had set it to cloudflare.

I changed it to Google and now about 50% of the internet works, but every website that is protected by cloudflare or that uses it in any way refuses to load.

When I use my phone, not in wifi, the same websites work immediately.

I thought I would reset my box IP address by restarting it but I've done 3 times already, the IP address does change but cloudflare still refuse my connections.