Watchtower 'Could not do a head request for \"containrrr/watchtower:latest\' falls back to reg pull, which then fails due to TLS Handshake Timeout

[bpapa9013]

Full error logs:
time="2025-02-17T09:57:55Z" level=warning msg="Could not do a head request for \"containrrr/watchtower:latest\", falling back to regular pull." container=/watchtower-watchtower-1 image="containrrr/watchtower:latest" time="2025-02-17T09:57:55Z" level=warning msg="Reason: Get \"https://auth.docker.io/token?scope=repository%3Acontainrrr%2Fwatchtower%3Apull&service=registry.docker.io\": net/http: TLS handshake timeout" container=/watchtower-watchtower-1 image="containrrr/watchtower:latest"

Docker Compose (Portainer Stack):

version: "3"
services:
watchtower:
image: containrrr/watchtower:latest
environment:
- WATCHTOWER_CLEANUP=true
- WATCHTOWER_INCLUDE_RESTARTING=true
- WATCHTOWER_POLL_INTERVAL=3600
- WATCHTOWER_DEBUG=false
restart: unless-stopped
volumes:
- /var/run/docker.sock:/var/run/docker.sock

It seems to be working fine, it checks for updates on all the other containers without issue, and has performed several updates/redeploys without issue. But every time it checks for updates to it's own image I get the two errors above. I am running Portainer on Docker on Debian 12.

Any help or explanation would be greatly appreciated.

[bpapa9013]

Nevermind, this issues seems to have resolved itself. Those error messages occurred during every check for most of a day, but then completely stopped at some point in the last ~18hrs.