
1.1.1.1 as AdGuard Home upstream took down my whole LAN tonight anyone else on US East seeing resolver timeouts?
Hey all — looking for a sanity check.
Setup:
- GL.iNet Flint 2 (AdGuard Home)
- US East (South Carolina)
- AdGuard upstream was 1.1.1.1
- Flint 2 “Override DNS settings of all clients” was ON
What happened:
Browsing started failing across every device/browser — Firefox “Server Not Found,” same idea in other browsers. Reloads would eventually work, YouTube streams that were already going kept playing, new sites were slow or wouldn’t resolve at all.
Troubleshooting:
- Disabling AdGuard Home immediately fixed it
- Re-enabling AdGuard with 1.1.1.1 + Override DNS ON = nothing loaded again
- Switched AdGuard upstreams to 8.8.8.8 / 8.8.4.4 / 9.9.9.9 and left Override OFF — stable since then
So this doesn’t look like a general internet outage on my side. Ping/established connections were fine; name resolution through 1.1.1.1 is what died.
Seems stable with Google DNS but I always preferred Cloudflare.