vm looses network connection

HI, since 2 days, some of our VMs just loose network. Nobody did anything, no changes on the VM, the hosts and the physical switches. The connection just drops and yersterday, after an hour or so, it came back. This is on different VMs on different hosts. We tried to migrate them to other hosts...

Hi everyone, First a big thx to the community I found lots of helpful posts here, you are awesome but I cannot find this particular problem in the forum and therefore I’m posting. Sorry I’m an absolute beginner and just started with virtualisation and Linux, so please expect no deeper knowledge...