Npacp 1.86
Found this bug
https://forums.virtualbox.org/viewtopic.php?t=114391
When I run Wireshark on host it kills guest network for Oracle VirtualBox which the host is a windows 10 and I use Intel PROSet adapter to make VLAN's that the guest VM uses.
I then did some testing by installing older Npacp version and found V1.6 does not have this problem and newer has this problem.