I've had this for years and never got a resolution: When I start up my W10 VM, everything is fine and I have internet access. However if I do not use the internet for ~1minute, it loses connection. I have to disable then re-enable the network adapter: It is definitely linked to the adapter not being used because my workaround is to run a command-window: ping -t google.comAnd if I do this at startup, the internet connection is never lost. I've had this over several major versions of Parallels, and it persists when I migrate my VM to a brand new Mac. It can't be normal, is it a known bug? I have looked at settings several times and nothing seems to work.