Cannot open remote UI on web browser and seeing "This site can’t be reached" - MF656Cdw

[remoteUI]

I just purchased Canon MF656Cdw all-in-one color laser printer/scanner. The printer is connected to wifi wirelessly and all the setup on the printer I could find on the cannon forum and user guides seem to be done. Still I cannot connect to the Remote UI log in screen by seeing  "This site can’t be reached". I tried with Microsoft Edge, Chrome, Safari on my pc/phone. I really want the printer to work for Scan to Email function. Is the printer driver necessary to be downloaded to use the printer to begin with in my pc? I am not planning to connect with my pc, only through my phone or tablet so installing the driver is not an option unless I absolutely have to. I am very confused here. Please help. 

[Danny]

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