So PVE is listening out on the port.
Try & find maybe something that is blocking traffic on port 3128, Windows firewall, router, switch etc.
A test you could make, spin up a Linux OS (Debian?) + Desktop VM, set it up for SPICE, & see if that connects.
Try & find maybe something that is blocking traffic on port 3128, Windows firewall, router, switch etc.
A test you could make, spin up a Linux OS (Debian?) + Desktop VM, set it up for SPICE, & see if that connects.