How can I fix ISP blocking Cloudflare

My is seems to be blocking cloudflares dns is there any way I can fix this.

It sure doesn’t look like you can. Do or work for you? They’re not Cloudflare, but Quad9 is good and supports DoH and DoT.

Out of curiosity, if you’re using Cellular, does it work?

It works on cellular but it doesn’t work on my fiber line.

Ok, so your ISP is blocking traffic to those IP adddress ranges…probably because they were/are stealing those addresses for themselves, or don’t realize they’re legitimate. You’ll have to contact them and let them know. For more help, email: support AT cloudflare DOT com and let them know which ISP is blocking Cloudflare DNS.