topic Wi-Fi won’t activate even when enabled on Canon 5D Mark IV in EOS DSLR & Mirrorless Cameras

Wi-Fi won’t activate even when enabled on Canon 5D Mark IV

Ilhemn11 — Sun, 14 Sep 2025 22:46:40 GMT

Hello,

I’m having an issue with my Canon 5D Mark IV. After connecting the camera to my computer via USB to copy photos and then unplugging it, I try to enable Wi-Fi (Menu → Setup → Built-in wireless settings → Wi-Fi/NFC → Enable). The option lets me select “Enable,” but Wi-Fi never actually turns on, it remains off.

I have already tried:

- Clearing communication settings

- Clearing all camera settings

- Removing the battery for an hour

- Re-entering a new camera nickname

Has anyone experienced this before? Any advice would be greatly appreciated.

Re: Wi-Fi won’t activate even when enabled on Canon 5D Mark IV

stevet1 — Mon, 15 Sep 2025 01:24:37 GMT

IIhemn11,

Is your Airplane Mode off?

Steve Thomas

Re: Wi-Fi won’t activate even when enabled on Canon 5D Mark IV

deebatman316 — Mon, 15 Sep 2025 01:30:17 GMT

Older DSLRs such as the EOS 5D Mark IV don’t have airplane mode.

Re: Wi-Fi won’t activate even when enabled on Canon 5D Mark IV

Ilhemn11 — Mon, 15 Sep 2025 09:10:03 GMT

Hey Steve, there isn't a direct "Airplane Mode" setting in the same way there is for newer mirrorless cameras, for the 5D Mark IV disabling Wi-Fi/NFC achieves the same result of temporarily disabling wireless functions.

Re: Wi-Fi won’t activate even when enabled on Canon 5D Mark IV

stevet1 — Mon, 15 Sep 2025 13:50:42 GMT

Demetrius,

Huh. I didn't know that.

Thanks,

Steve Thomas

Re: Wi-Fi won’t activate even when enabled on Canon 5D Mark IV

deebatman316 — Mon, 15 Sep 2025 15:21:59 GMT

Does the EOS Rebel T8i/ EOS 850D/ EOS kiss X10i have that setting. I know that EOS R series cameras have this setting. But I’m not if the EOS M series has this setting along with other EOS DSLRs.

Re: Wi-Fi won’t activate even when enabled on Canon 5D Mark IV

stevet1 — Mon, 15 Sep 2025 20:00:45 GMT

Demetrius.

You wrote, "Does the EOS Rebel T8i/ EOS 850D/ EOS kiss X10i have that setting?"

If you are talking about Airplane Mode, I have a T8i and yes, it does.

Steve Thomas.

Re: Wi-Fi won’t activate even when enabled on Canon 5D Mark IV

stevet1 — Mon, 15 Sep 2025 20:04:43 GMT

IIhemn11,

Aside from turning off Airplane Mode, I'm not sure I can help. It's as if your camera still thinks it's connected by a cable.and won't let you connect by wi-fi/

Perhaps you could try turning your camera off after you disconnect the USB cable and start wi-fi from scratch.

Steve Thomas

Re: Wi-Fi won’t activate even when enabled on Canon 5D Mark IV

deebatman316 — Mon, 15 Sep 2025 20:06:53 GMT

I’m surprised by that.