The main issue is that net-vm crashes after a long sleep.
It doesn't happen 100% of the time but many times coming back from sleep it will be completely unresponsive and will have to be killed.
Other times it will be responsive but will not be able to access the wifi card unless rebooted.
On top of all that if I change the network of a running disp vm to none and than back to sys-firewall it will not be able to access the network. so if I have a running disposable VMs when net-vm needs a restart they will not be able to access the network after the restart
I can't use sleep on my system either. in 3.2 it would be unstable I figured due to ssd. but in 4.0 i get the network not working either.
Nowadays I can't rarely ever use sleep on a windows system either without instability or bad driver issues.