Fuji Xerox DocuCentre-V C2265 Administrator's Manual page 556

Problem Solving
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Error Code
021-502 [Cause] An error occurred while connecting to the EP system via the
Internet. There is a problem with the address of the EP proxy
server name.
[Remedy] Switch off the machine power, make sure that the touch screen
is blank, and then switch on the machine power. Execute the
operation again. If the error still is not resolved, contact our
Customer Support Center.
021-503 [Cause] An error occurred while connecting to the EP system via the
Internet. There is a problem with the address of the EP proxy
server name.
[Remedy] Check the followings:
If the error still is not resolved after checking the above settings,
there may be a network failure or the proxy server settings may
be changed or failed. Consult your system administrator.
If the network works normally but the error still is not resolved,
contact our Customer Support Center.
021-504
[Cause] An error occurred while connecting to the EP system via the
Internet.
[Remedy] Check the followings:
If the error still is not resolved after checking the above settings,
there may be a network failure or the proxy server settings may
be changed or failed. Consult your system administrator.
If the network works normally but the error still is not resolved,
contact our Customer Support Center.
021-505 [Cause] The communication with the EP server failed.
[Remedy] Switch off the machine power, make sure that the touch screen
is blank, and then switch on the machine power. If the error still
is not resolved, contact our Customer Support Center.
021-506 [Cause] The Certificate for the EP server is incorrect.
[Remedy] Switch off the machine power, make sure that the touch screen
is blank, and then switch on the machine power. Execute the
operation again. If the error still is not resolved, contact our
Customer Support Center.
Cause and Remedy
LAN cable connection
DNS server address setting
The default gateway setting
The subnet mask setting
LAN cable connection
DNS server address setting
The default gateway setting
The subnet mask setting