Canon Pro-100 wireless function quit working

[Runner67]

my canon pro-100 just stopped working wirelessly, from my desk top, and lap top.
I did the reinstall, and reinstalled the latest driver from canon, still not working.
there have been no changes in either systems that would cause this.
I had no problems with the original wireless install, and it worked fine for about a year.
when i try to use the printer wielsessy i get a message to turn the printer on, or not found on wireless network

i get the same message when i do the reinstall with the usb cable. I can still print using the usb connection

[Tiffany]

Hi Runner67!

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[Runner67]

my operating systems desk top windows 8.1, laptop windows 7

[ebiggs1]

I will assume you have a wireless router?  Is it installed on the desktop?  The router is the problem. Maybe it has lost the IP address of the printer.  Reboot the router.  You may have to go inside it and check the IP address.