Canon EOS-1D X Mark III Advanced User's Manual page 574

2.
Select a key index.
The [Key index] screen is displayed for WEP-encrypted access points.
Select the key index number set on the access point.
Select [OK].
3.
Enter the encryption key.
Press <
encryption key.
Select [OK] to initiate connection with the access point.
The following screen is displayed once the camera is connected to the
access point.
Go to Setting the IP
> to access the virtual keyboard (
Address.
574
), then enter the