When I switch to Cloudflare’s DNS in my router, it keeps showing that it’s offline even though internet traffic works fine, I can access websites, video streaming etc, even online gaming works fine.
My physical location: Shillong, Meghalaya, India
My ISP: BSNL FTTH
My ONT: TP-LINK XN020-G3v (set up in bridge mode)
My Router: TP-LINK Archer D2 (handles PPPoE)
With a different DNS provider: