I don't know if anyone looks at apt-cacher-ng bug reports, but reassigning it there for further analysis. The log says that this is apt-cacher-ng failing to talk to launchpad.
I generally recommend avoiding apt-cacher-ng due to bugs in the interaction with apt (which then go in endless circles of blame between both sides, but not resolved) and using squid instead if a proxy is needed. ** Package changed: apt (Ubuntu) => apt-cacher-ng (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1960264 Title: 503 errors for Jammy PPAs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt-cacher-ng/+bug/1960264/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
