Canon EOS-1D X Mark II Manual

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124
Responding to Error Messages
What to check on the transmitter
On the transmitter, does the FTP server’s IP address setting 
match the server’s actual address?
Configure the IP address on the transmitter to match the actual 
FTP server address (p.38).
Are the transmitter and the access point set to use the same 
encryption key for authentication?
This error occurs if the encryption keys do not match when the 
authentication method for encryption is set to [Open system]. 
The setting is case-sensitive, so check upper- and lower-case 
characters. Make sure that the correct encryption key for 
authentication is entered on the transmitter (p.32).
On the transmitter, does the [Port number setting] for the FTP 
server match the actual port number of the FTP server?
Configure the same port number (usually 21) on the transmitter 
and FTP server. Configure the port number on the transmitter to 
match the actual FTP server port number (p.39).
Are the transmitter’s FTP server settings correctly entered on 
the DNS server?
Make sure the FTP server’s [Server name] is correctly entered on 
the DNS server. Make sure the [Server name] for the FTP server 
is correctly entered on the transmitter (p.38).
41: Cannot connect to FTP server