Recently I got a small webserver. I port forwarded the webserver's IP4V to a public static IP. When I am connected to the port forwarded router and I go on the public IP on my browser I get the 400 Bad request Error. But when I am connected to a different network like my phone data, it works.
I port fowarded HTTP on port 80, HTTPS on port 443, and checked if they are open.
I tried connecting on different browsers as well.