Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 463)

Caution
Wireless communication is not available while the camera is connected via an
interface cable to a computer or other device.
Other devices, such as computers, cannot be used with the camera by connecting
them with an interface cable while the camera is connected to devices via Wi-Fi.
The camera cannot be connected via Wi-Fi if there is no card in it (except for [
],
[ ], or [ ]).
The Wi-Fi connection will be terminated if you set the camera's power to < >,
or open the card slot cover or battery compartment cover (but FTP transfer
connections will continue even with the power set to <
>).
With a Wi-Fi connection established, the camera's auto power off does not function.
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