I have a server 2012 hyper V running on Hyper V core, I have 2 shred printers, an HP and a Kyocera set up on the server and shared throughout the users, they stop working, users print to it but it never leaves the que and makes it to the printer. I have checked the spooler service, that's ok, I even re-start the service, and then I notice that when this happens, Logmein and the anything on the server cannot access the internet.. network users can still access internet. Seems like something is blocking ports , but the firewall is completely off, once I reboot, all works fine for about 20-40 minutes then back to the same... I have also checked read/write permissions in the system32/spool/printers folder.. This one has me stumped..