Symptom: Printing does not consistently work on the network. A printer may appear available, but print jobs that are sent to it are not completed.

Cause: Determine if only one user is experiencing this problem or if several people have the same issue. If only one user is having the issue, it may be that the PC is not mapped correctly to the print server. If this is not the cause, the network between client and printer may be to blame. Packet loss can cause printing problems, as well as network connectivity problems on the printer itself.
Resolution: Check the printer configuration to make sure it has a good IP address and
can access the print server if it is external to the printer. At times, updating the printer driver has resolved printing issues. Overall, be sure that traffic is getting to and from the printer on the network and that all printer drivers are up to date.