Comment 15 for bug 1712283

I have the same issue. A couple of month ago we had a similar issue, which could be fixed by "downgrading" the resolver setup for systemd. However, the issue returned a couple of days ago.
In general networking works after start up, but stops after a random time period. When I "turn off" the connection and then turn it on again, it works again for some time before it breaks down again.

This only affects DNS, as media streams and running connections are not affected. The time interval range from 1-2 minutes up to an hour.