Appears related to this post, but not an exact duplicate.
Am encountering frequent (undiagnosed) network drops where no containers can reach outside WAN addresses (e.g. apt install).
The only workaround identified so far is to restart Docker…
However, this approach itself fails, when using the GUI.
Hangs:
Rest of the interface then becomes unusable.
Consequently the only option becomes to stop and shut down all work on the host, and reboot the host machine.