The print spooler was unable to connect to your printer

Problem when printing to Network Printer

"The print spooler was unable to connect to your printer. This can be caused
by your printer being turned off, the cable being unplugged, or by being
connected to a VPN, which will block your access to your local network. Your
document will print when the printer becomes available."

The message stays on screen until manually cleared, it does not
automatically clear when the printer comes back online.

Solution:
After much googling i came to a solution As soon as I replaced the "HP Standard TCP/IP Port" with the "Standard TCP/IP Port" on all my print queues everything was fine.