Network Printer goes Offline in Windows
Recently I had a client with a networked printer constantly going offline. Even the classic Windows solution, rebooting didn’t fix the issue. This seems to be an issue not only in Windows 7, but also in Windows 8, as well as Windows Vista.
My first inclination was the PC was not properly coming out of sleep mode, so I disabled the screensaver, as well as turned off the power saving options. As it turned out, this did not fix the printer offline issue on the network printer.
What happens is that Windows 7 enables SNMP support for networked printers. The problem is that some printers don’t respond to SNMP queries. This is especially true of older printers.
Since the printer doesn’t implement SNMP, and therfore doesn’t respond to the SNMP queries, the computer assumes its is offline.
Fortunately, there is a simple fix for this. Its just a matter of configuring the port the PC uses to communicate to the network printer to not use SNMP for communication.
Here is how to set the network printer to be online. First thing, you must be logged in as an Administrator. Click on the Start button, then on Devices and Printers. Then Right Click on the printer that is offline and select Printer Properties. Then click on the Ports tab. and you will see the following:
Windows 7 network printer is offline
Click on the Configure Port button as shown above.