No network after power off

Installation
#1

Hi - I run hassos on VirtualBox in Windows and it has been happy for over a year. unfortunately I did an unclean shutdown on the host (windows update) and since then the VM cannot see the network.
I get the following errors on startup

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Querying the CLI shows no address
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The host windows machine is happily on the network. The router is not seeing the VM’s MAC and is not allocating an IP.

I’ve had a look at the Windows Defender firewall and cannot see anything obvious blocked … but not sure what I should be looking for (Oracle Virtual Box??)

Any ideas?
TIA

#2

Have you tried reboot host again, or/and entire VB

#3

Thanks for getting back to me. I have restarted the VM multiple times, the VirtualBox host and the Windows host. Still no network.
I have started another VM on the VirtBox and that is also not seeing the network … but for some reason >apt update etc does work. There does apear to be an adapter with an IP address (10.0…)but it is not coming from the router.

#4

What is really weird is that the new debian VM can perform apt update etc and I can use CURL to get a response from a webserver on the windows box …
I guess outbound connectivity is provided though the VM host in some way? I just cannot connect inbound!

#5

Inbound connections possible :
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No inbound connections possible:

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#6

Thanks, that was a huge help. My test VM was set up as NAT which explains the behaviour, but my HA VM was set up correctly … except the the interface was using WiFi not ethernet adapter. Sorted that rebooted and it works :smiley:
I think I must have disturbed the network cable so when VirtualBox restarted it only saw one adapter and used that. Unfortunately the laptop was in airplane mode :roll_eyes:
Really appreciate all the help in nudging me towards the fix - cheers!
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