I have been using airtel broadband for couple of years now and port forwarding used to work flawlessly. I port forward for testing some of my application and doing it for a long time on my TP-Link AX1500 router in bridge mode. Today I tried to port forward port 80 on my airtel xstream dsl connection but it didn't work. I even tried putting my server in DMZ and disabling firewall to confirm that the issue was not with my router. I was using my mobile data connection to access my application and also tried using a VPN to confirm that it wasnt a problem of my mobile connection either. Interestingly I was able to access my application from my public ip with my airtel connection , I vaguely remember it is not possible to access content of a public ip from the same public ip but I might be wrong here.Could you guys check by port forwarding on your connection to see if airtel is blocking ports or it is a problem with my configuration?