https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF644Cdw-says-quot-Connect-the-Computer-quot/m-p/404075#M18275 <P>Hello Ick812,</P> <P>If the printer and the computer are on the same network and the computer is unable to locate it, it will usually mean there is a problem with the network connection/environment or something is blocking the connection. If you have already verified that the printer has a valid IP address and can access the <A href="https://oip.manual.canon/USRMA-3547-zz-SSM-740-enUS/contents/devu-mcn_mng-rui-strt.html" target="_self">web UI</A> of the printer from the computer, I would suggest contacting our support team over the phone at 1-800-652-2666. Our agents would be happy to check the network environment to see what is going on and check if anything is blocking the setup from finding the printer.</P> Mon, 30 Jan 2023 19:32:05 GMT Hector 2023-01-30T19:32:05Z https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF644Cdw-says-quot-Connect-the-Computer-quot/m-p/399649#M17931 <P>I have a Canon Color ImageCLASS MF644Cdw printer which was working fine up to a few days ago.&nbsp; It is a wireless connection to my Dell desktop and was communicating just fine.&nbsp; Now it won't print documents from the computer to the printer or scan from the printer to the computer (used too). Things I've tried to do:</P><P>Uninstall/reinstall printer.&nbsp; Had to use a wired connection to upload the drivers and get the computer and printer&nbsp;&nbsp; communicating.&nbsp; Never got past the "Select Device" on the install wizard because the device window is empty (unable to locate printer).&nbsp; Tried the IPv4 address given on printer and entered it into the to the install wizard "Search by IP address" and it says it can not be found.</P><P>Network discovery is on</P><P>Turned off all firewalls (Windows and McAfee)</P><P>Turned off Real time Scanning</P><P>Made sure computer and printer are on the same network.&nbsp; Only one available network where I'm at.&nbsp; Went through the process of connecting printer to the network many times.&nbsp; Says it's connected.</P><P>Network discovery is on</P><P>File and printer sharing is on</P><P>Offline box is not checked.&nbsp; However, when I go back and look it seems to be checked. I keep unchecking the box.</P><P>Tried some other things too.&nbsp; Been at this for a day or so with no luck.&nbsp; Any other suggestions would be greatly appreciated.</P><P>&nbsp;</P> Thu, 29 Dec 2022 13:34:05 GMT https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF644Cdw-says-quot-Connect-the-Computer-quot/m-p/399649#M17931 lck812 2022-12-29T13:34:05Z https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF644Cdw-says-quot-Connect-the-Computer-quot/m-p/404075#M18275 <P>Hello Ick812,</P> <P>If the printer and the computer are on the same network and the computer is unable to locate it, it will usually mean there is a problem with the network connection/environment or something is blocking the connection. If you have already verified that the printer has a valid IP address and can access the <A href="https://oip.manual.canon/USRMA-3547-zz-SSM-740-enUS/contents/devu-mcn_mng-rui-strt.html" target="_self">web UI</A> of the printer from the computer, I would suggest contacting our support team over the phone at 1-800-652-2666. Our agents would be happy to check the network environment to see what is going on and check if anything is blocking the setup from finding the printer.</P> Mon, 30 Jan 2023 19:32:05 GMT https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF644Cdw-says-quot-Connect-the-Computer-quot/m-p/404075#M18275 Hector 2023-01-30T19:32:05Z