All of my VMs are no longer connecting to internet

[MROCO]

Hello,

I created a small network of about 7 VMs in VIrtualBox in two classes ago, that I will need again in the future. At the end of the class I was able to access the internet through any of the VMs through NAT set up on a pfSense firewall and managed by a Windows 2019 Server. I also had an ubuntu, a Kali, a RHEL, and a Windows 11 machine running. Any one of them were working. I came back to them just eight weeks after I stopped using them and now none connect to the internet now. I didn't change any settings prior to this issue occurring. I resorted to creating a new Kali VM in VIrtualBox with identical network settings to that of the one that stopped working (NAT) and it works just fine when I connect to the internet.

Please anyone with some leads, let me know, I'd rather not have to go back and reconfigure seven machines..

[scottgus1]

Does a brand new VM running outside the pfSense network ping the internet at 8.8.8.8?

Does the pfSense VM ping the internet at 8.8.8.8?

Does a VM inside the pfSense LAN side ping the internet at 8.8.8.8?

Right-click each VM in the main Virtualbox window's VM list, choose Show in Explorer/Finder/File Manager. Copy the VM's .vbox file (not the .vbox-prev file) to the desktop (Configure your host OS to show all extensions if the folder that opens does not show a .vbox file). Zip all the .vbox files and post the zip file, using the forum's Attachments tab.