Troubleshooting - ISSI LC-2 Operation Manuals

Canon ef/ef-s lens controller (lc-2)
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Troubleshooting

Communication
The lights on the Ethernet port should be
flashing if communication is established. If the
device is locked and the lights are not flashing,
it is locked in firmware upgrade mode.
Check the lens to assure the lens is locked in
place. If the lens is not locked in place, the pins
may not be correctly aligned, which can cause
the device to lose power.
Firmware Upgrade
If the lens controller firmware update fails to initialize, it may appear that the lens controller is
locked and communication can't be established. Start by pinging the IP address in the
command prompt to assure there is communication.
If there is no communication and a general failure message is displayed, there may be
another issue like the Windows Firewall or antivirus blocking the program.
The firewall or antivirus will either need to be turned off or an exception for the software will
have to be made to allow it through.
In this case, try connecting to the lens controller in the software interface. It won't connect so
press the STOP button.
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