Out of the blue, printers in our NYC office started to experience
intermittent printing problems. Sometimes printing is fine. Other times
users have to wait up to a half hour for the print to come out.
Sometimes, it won't print at all. It happens on multiple model PCs with
multiple users and multiple printers. We see an SNMP Communication failed
error on the printer during the times that it's not printing. We've
upgraded the iPrint client, applied the MS hotfix and various other
"fixes". We've removed the printer and re-created it in IManager. We
can ping the printer from the workstation.

Any help would be appreciated.