One reason I can imagine is the lack of time refresh.
If you don’t have NTP running and you are running this on your laptop and it has been sleeping for a while, the timing could be off and therefore not allowing you access.
Several solutions to this:
reboot your VM
set the date manually using the
If possible, you will want to set up NTP to overcome this issue. Depending on your setup you may need 2 interfaces (1x internal, 1x NAT).
Add another network card in your hypervisor and run net_setup.pl. This guide might help you along with the videos in course 1.
If this didn’t help, please explain to me your setup. We could also set up a zoom call, so I can help you remotely.