So I've recently installed both Ubuntu 16.04 and Debian 9 (Stretch) as guest machines on VirtualBox on a Windows 10 host. Both are able to connect to the internet just fine when I'm not on VPN (updates, web browsers, etc.). However, when I connect to VPN, which both VM's show that they are connected in the guest, only the Debian VM actually has outside connectivity - Ubuntu encounters "unable to resolve" type errors.
I've checked the network settings within the guests, and both are identical. I've checked the VM network settings, and those are ALSO identical. Does anyone know of a reason this could be happening, and more importantly, what I can do to fix? To me the most confounding part is that one works flawlessly, while the other works not at all. I've even gone so far as to delete the VM and rebuild it from scratch - no luck. Settings are below:
VM Network (Ubuntu & Debian):
- Attached to NAT
- Adapter Type: Intel PRO/1000 MT Desktop (82540EM)
- Promiscuous Mode: Deny
- MAC Address: 080027DA2981
- Cable Connected: Checked
- Port Forwarding: Empty
Guest machine, Ubuntu & Debian:
General
- Automatically connect to this network when it is available All users may connect to this network
Ethernet
- Device:
- Cloned MAC address:
- MTU: automatic
- Wake on LAN: Default checked
802.1x Security
- Everything unchecked/blank
DCB
- Everything unchecked/blank
IPv4Settings
- Automatic (DHCP)
- Everything else blank
IPv6Settings
- Automatic
- IPv6 privacy extensions: Enabled (prefer temporary address)
- Everything else unchecked/blank
Thank you in advance!
Cross posted.
