If you print spooler continues to drop offline for unknown reasons, follow this post to troubleshoot and resolve. Mileage may vary depending on your environment:

In our case, the print spooler is running into Event ID 337:

<a href="http://egroup.jasonmangone.com/wp-content/uploads/2011/10/PrintSpooler1.jpg"><img class="size-full wp-image-5389 alignleft" src="http://egroup.jasonmangone.com/wp-content/uploads/2011/10/PrintSpooler1.jpg" alt="" width="444" height="360" /></a>

 The issue is pointing to Active Directory and a further investigation of the following event log points us to our ultimate destination.

 <a href="http://egroup.jasonmangone.com/wp-content/uploads/2011/10/printspool2.jpg"><img class="alignleft size-full wp-image-5395" src="http://egroup.jasonmangone.com/wp-content/uploads/2011/10/printspool2.jpg" alt="" width="444" height="360" /></a>

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 With this information in hand, we know that we are specifically dealing with a WSD issue on the Print Server itself.

Log into the Print Server and review the properties of the Print Server. Be on the lookout specifically for "WSD" under the Ports tab.<a href="http://egroup.jasonmangone.com/wp-content/uploads/2011/10/printspooler31.jpg"><img class="alignleft size-full wp-image-5399" src="http://egroup.jasonmangone.com/wp-content/uploads/2011/10/printspooler31.jpg" alt="" width="636" height="715" /></a>

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