Canon EOS-1D X Mark III Advanced User's Manual page 723

72: Cannot connect to sender camera
Are you following the correct procedure to establish the connection with the
sender camera?
• Operate the sender camera by following the correct instructions.
Is the sender camera too far from the receiver cameras?
• Bring the sender camera closer to the receiver cameras.
73: Could not synchronize the time
Are you following the correct procedure to establish a connection between the
sender and receiver camera?
• Operate the sender and receiver cameras by following the correct instructions (
Is the sender camera too far from the receiver cameras?
• Bring the sender and receiver cameras closer together.
81: Wired LAN connection lost
Is the LAN cable securely connected?
• Reconnect the LAN cable between the camera and server. Because the cable may
be severed, try using another cable to connect the devices.
Is the hub or router on?
• Turn on the hub or router.
Is the server on?
• Turn on the server. The server may have been turned off because of an energy-
saving mode.
83: Network connection terminated due to overheating
Communication has temporarily stopped due to high internal camera temperature,
and the camera has ended the wired LAN connection.
• Allow the camera to cool down, as by shading it from direct sunlight. Once the
camera has cooled down, the connection will be restored automatically.
91: Other error
A problem other than error code number 11 to 83 occurred.
• Turn the camera's power switch off and on.
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