Assuming this is not a technical problem with your network, check to see if you have set a very long time out period for print spooler checking inside Visual Builder.
1. Start Visual Builder
2. Select File|Print Job Manager
3. Click on Advanced button
4. Change timer to 1
5. Press OK repeatedly until you return to the main menu.
You will need to repeat the above procedure for each computer on your network.
This should resolve the problem if the previous setting was high, such as 5 or 10 or more.