Hi bobkat91911,
Uninstalling and reinstalling the network port and printer driver should resolve this issue. To perform the uninstall, please follow these steps:
1. Right click the Windows Start Menu button in the lower left hand corner and left click Control Panel (or Settings).
2. Under Programs, click on Uninstall a Program.
3. Click on the Canon MG3500 MP Driver and then click Uninstall at the top.
4. Follow the prompts to uninstall the driver.
5. Click on the Canon IJ Network Tool and the click Uninstall at the top.
6. Follow the prompts to uninstall the network tool.
7. Click on the Canon IJ Network Scan Utility and then click Uninstall at the top.
8. Follow the prompts to uninstall the scan utility.
9. Restart the computer once complete.
When the computer restarts, please follow these steps to download the latest driver:
1. Visit Canon's website at: http://usa.canon.com/support
2. Type PIXMA MG3520 in the "Enter a Model" box and click GO.
3. In the Drivers section, click the "Select" button next to the MG3500 series MP Drivers.
4. Click the Download button.
5. If a Save dialog box appears, click Save.
6. Once the download is complete, open your Downloads folder.
7. Double click [mp68-win-mg3500-1_01-ejs.exe]. Files will extract.
Follow the prompts to reinstall your PIXMA MG3520 for wireless use and the installation will complete.
If you would like to see the step by step process of setting up your PIXMA MG3520, please click the following link:
http://downloads.canon.com/html/wireless/modules/13anw-ww/13alw-ww-0010-001/13alw-ww-0010-001.html
If you continue to have difficulties, please contact our support group using the following link:
http://Canon.us/ContactLI
