No network at host but vm have

Not sure how to address that
My vm can connect to the internet or other services without problems
But the host itself have no network connectivity.
Mean, vm full internet access host timeout or host not reachable
First I thought it's the r8168/69 problem (have r8168) but after got r8168 running problem is still there
If restart network service broblem fixed for a minute but back after

It's an proxmox on an Debian setup running aktual proxmox from no-subscription

Google so far didn't help...

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