topic Re: My Canon iP8720 Won't Connect to Wi-Fi or Through Mobile App in Printer Software & Networking

My Canon iP8720 Won't Connect to Wi-Fi or Through Mobile App

fancyopie — Fri, 26 Dec 2025 17:49:14 GMT

Hello everyone!

Just got a new Canon that I'm very excited about! Unfortunately, it refuses to connect to my network. I will buy a USB cable if I have to but would prefer to just connect it over Wi-fi.

I have tried restarting my printer, the devices I'm trying to connect it to, and my router.

I have seen some people suggest connecting with a guest network, but that isn't something that my router is able to do.

Similarly, when I go into the app on my phone, it works right up until I connect to the canon Wi-fi, when it tells me I am "connected without internet". Unhelpful.

Does anyone have any more things I could try?

Thanks in advance!

#iP8720

Re: My Canon iP8720 Won't Connect to Wi-Fi or Through Mobile App

shadowsports — Fri, 26 Dec 2025 19:54:52 GMT

How is the network configured? The printer requires a 2.4 GHz broadcast that uses WPA2 encryption. Does your network meet these requirements?

Re: My Canon iP8720 Won't Connect to Wi-Fi or Through Mobile App

fancyopie — Sat, 27 Dec 2025 00:30:17 GMT

Oh, I see! My network has a WPA2 encryption but 5GHz broadcast. Is there any way around this or am I out a printer?

Thanks so much for the response!

Re: My Canon iP8720 Won't Connect to Wi-Fi or Through Mobile App

shadowsports — Sat, 27 Dec 2025 14:28:15 GMT

Greetings,

While possible, it's rare that a standard router is only a single band like 5G. This type of router is usually relegated to mobile or hotspot types. Netgear, T-Mobile are examples.

If your router only has a 5 GHz broadcast, the printer is not compatible unfortunately.

Re: My Canon iP8720 Won't Connect to Wi-Fi or Through Mobile App

DerrickL — Sat, 27 Dec 2025 22:11:17 GMT

What brand and model is your router? I bet it has two bands but the 2.4ghz most likely needs to be enabled.

Re: My Canon iP8720 Won't Connect to Wi-Fi or Through Mobile App

fancyopie — Sun, 28 Dec 2025 18:11:35 GMT

I found out a way to enable 2.4GHz on both my computer and phone and it STILL says it's "failing to communicate with printer". UGH! Any idea why that would be??

Re: My Canon iP8720 Won't Connect to Wi-Fi or Through Mobile App

fancyopie — Sun, 28 Dec 2025 18:11:49 GMT

I found out a way to enable 2.4ghz on both my computer and phone and it STILL says it's "failing to communicate with printer". UGH! Any idea why that would be??

Re: My Canon iP8720 Won't Connect to Wi-Fi or Through Mobile App

Stephen — Sun, 28 Dec 2025 18:26:51 GMT

Try to reinstall the Canon software. You can get it from here: https://ij.start.canon/ip8720

It will walk you through the steps. If you get stuck, be sure your printer is registered at https://canon.us/account and give our team a call during normal business hours, at 1-800-OK-CANON (800-652-2666).

Re: My Canon iP8720 Won't Connect to Wi-Fi or Through Mobile App

DerrickL — Fri, 02 Jan 2026 15:26:14 GMT

I agree with Stephen's post, it is likely that your Canon software did not complete its installation due to not being able to connect the printer to your wifi.