I have a problem, that my VMs (either MacOS, Windows or Linux have a problem with network being present right after boot into OS, in probably 3 to 4 times out of 10. Usually I have full network access (internet and local network to NAS and other computers) right after booting into OS. But sometimes network is not present and it takes up to 1.5 and 2 minutes before it is available.

Any Idea what could cause this behaviour?

It is the onboard controller at my Gigabyte Aeorus Pro which is also used by unraid:
06:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)

I have also a 10GBe Ethernetcard with two ports. This network never shows that behaviour.

 

tower-diagnostics-20221002-1039.zip

My guess is that this shouldn't be related to vms...what about disabling bonding (bond0) and use only br0 bridge?

I disabled bonding and did a few boot ups. 

But it still takes some time till network is up and running. Maybe a little bit faster like with bonding activated.
Maybe this is just the way it is whithout a dedicated NIC for my VM and I have to live with that.
What bothered me, was the fact, that network sometimes is there immediatly and sometimes not.

 

 

Edited October 3, 20223 yr by derpuma

Nothing more to advise, sorry, all I know is that my networks are available as soon as I start any vm, virtio, e1000, vmxnet3...