Canon MX922 Wifi Connection Problem

I have a Canon MX922 on a Windows 10 laptop, attempting to both print and scan wirelessly. Printer is very close to router (within 3 ft).  Successfully connected to wifi, signal strength 100% per Network Configuration Page.

During both printing & scanning, wifi indicator light blinks on and off continuously. Scanning is slow, with frequent stops and starts, and sometimes connection becomes lost. Printing is slow as well, w/frequent stops & starts and sometimes terminates halfway through a page. 

Any suggestions? 

Thanks

Dan