Problem with no network after copies ou fresh install VM with Debian 11 under PVE 7.2.4 ?

[Fifionline69]

Could you explain to me why and this randomly, when I make copies of fully functional VMs or from a fresh installation of a VM under Debian 11, I am unable to exit on the WAN despite a good ens18 network card and the correct IP config?

When this happens, I have to waste two or three hours tinkering with everything before finally trying to reinstall again... without success yet!

Until "by magic" it becomes UP and I can get out ??

Thank you very much

 

[Fifionline69]

Found -> The Update of MAC address in ARP table if you use the same IP for a new VM or from a copy