Comment 4 for bug 1908012

Thank you for your explanations BertN45,
I've taken a VM and tried to replicate your scenario by keeping it connected to a bridge, but that bridge not connected anywhere else). That should match your case - but Ubuntu Server as well as Ubuntu Desktop guests started well in my case.

So either it must be something special (package installed, configuration) in your failing Ubuntu systems OR your network issue was more complex than just "connected to net, but not the internet".
Either way we'd need more details and tries on your end, since you stated that you won#t come/reply back we are again at what Lucas mentioned - a not actionable bug.

Therefore I'm keeping it in incomplete state so that it can auto-expire if no further updates happen.