I am facing an issue with my airtel 4G connection since morning. When I turn on mobile data, I get a notification to sign in to my network. When I click it, it redirects me to http://one.airtel.in/rcconf, but it fails with the NXDOMAIN error. The problem is when I open a new webpage, it gets redirected to this webpage. This issue propagates to every device which I connect to its hotspot. But the webpages having their DNS cached in my browser work fine. The issue gets resolved when I use a VPN. I know Airtel's trashy support won't be able to resolve this. Please help.