Oki B412dn User Manual page 257

The connection cannot be established due to your network environment.
Check with your network administrator.
xxxxxx14 An error with the DNS server has occurred.
Check the DNS server setting of the printer or the setting of the proxy server name.
xxxxxx15 Failed to connect to the proxy server.
Check the proxy server setting of the printer.
If the problem cannot be solved, check with your network administrator.
xxxxxx16 An proxy server connection error.
The connection cannot be established due to your network environment.
Check with your network administrator.
xxxxxx17 An authentication error of the proxy server.
Check the proxy server setting of the printer.
If the problem cannot be solved, check with your network administrator.
xxxxxx81 An error with the DNS server has occurred.
Check the DNS server setting of the printer.
xxxxxx82 Failed to connect to the XMPP server.
Check that the XMPP (5222) port is opened.
If the problem cannot be solved, check with your network administrator.
xxxxxx83 Failed to connect to the XMPP server.
Check that the XMPP (5222) port is opened.
If the problem cannot be solved, check with your network administrator.
xxxxxx84 An error with the DNS server has occurred.
Check the DNS server setting of the printer or the setting of the proxy server name.
xxxxxx85 Failed to connect to the proxy server.
Check the proxy server setting of the printer.
If the problem cannot be solved, check with your network administrator.
xxxxxx86 A connection error with the proxy server.
Check that the XMPP (5222) port is opened.
If the problem cannot be solved, check with your network administrator.
xxxxxx87 An authentication error of the proxy server.
Check the proxy server setting of the printer.
If the problem cannot be solved, check with your network administrator.
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