Nonexistent host networking interface

[georgeby]

The following error message is displayed when restoring a VM from a Saved state:

Failed to open a session for the virtual machine [VM NAME].

Nonexistent host networking interface, name 'Atheros AR8131 PCI-E Gigabit Ethernet Controller (NDIS 6.20) #2' (VERR_INTERNAL_ERROR).

Result Code: E_FAIL (0x80004005)
Component: Console
Interface: IConsole {db7ab4ca-2a3f-4183-9243-c1208da92392}

This occurs when the following is performed:

1. VM is running fine, and in Bridged networking mode connected to the LAN network interface. This interface is connected to a wireless router
2. The VM state is saved
3. Host is put to sleep
4. Wireless router is unplugged
5. Host is woken up
6. A different network device, in this case a network hub is plugged into the LAN
7. The VM is started again, and the error appears

The workaround is to delete the savestate and start the VM again.

For interest, the VM is Windows 2012 with 8GB RAM, 2 CPUs and apart from Shared Folders there is nothing fancy configured.

This behaviour does occur for all OSs and configurations.

I would assume this has something to do with when a network interface is disabled and enabled again, it adds "#2", "#3" next to it. Note, though that no setting in the Host (in Windows 7) shows that the network interface has been renamed, this appears to be the internal NIC name.

[Frank Mehnert]

Duplicate of #11183.

[georgeby]

Replying to frank:

Duplicate of #11183.

Thanks - sorry about the duplicate!