Pi-hole Web UI Unreachable After a Failed TLS Certificate Auto-Renewal
Pi-hole Web UI Down : A TLS Certificate Auto-Renewal Failure and the Fix
I noticed that the Web UI of the Pi-hole I run at home (http://127.0.0.1:8053/admin) had become completely unreachable.
All I got back was Connection reset by peer, and neither the browser nor curl could see anything.
DNS resolution (port 53) was still working fine, so there was no real damage.
As far as docker ps went the container was shown as healthy, so I had not been worried, but when I looked into it I found that the problem itself went back six days, to 2026-08-01.
[Read More]