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Trouble Case
Cannot Access Web Cong
The IP address is not assigned to the printer.
A valid IP address may not be assigned to the printer. Congure the IP address using the printer’s control panel.
You can conrm the current setting information with a network status sheet or from the printer’s control panel.
Web browser does not support the Encryption Strength for SSL/TLS.
SSL/TLS has the Encryption Strength. Web Cong can be opened by the web browser that supports the bulk
encryptions as follows. Check your browser's encryption support.
80bit: AES256/AES128/3DES
112bit: AES256/AES128/3DES
128bit: AES256/AES128
192bit: AES256
256bit: AES256
CA-signed Certicate is expired.
If there is a problem with the expiration date of the
certicate,
"e
certicate
has expired" is displayed when
connecting to Web Cong with SSL/TLS communication (https). If the message appears before its expiration date,
make sure that the printer's date is congured correctly.
The common name of the
certicate
and the printer do not match.
If the common name of the certicate and the printer do not match, the message "e name of the security
certicate does not match···" is displayed when accessing Web Cong using SSL/TLS communication (https). is
happens because the following IP addresses do not match.
e printer's IP address entered to common name for creating a Self-signed Certicate or CSR
IP address entered to web browser when running Web Cong
For Self-signed Certicate, change the printer name. e certicate is updated and the printer can be connected.
For CA-signed Certicate, take the certicate again for the printer.
The proxy server setting of local address is not set to web browser.
When the printer is set to use a proxy server, congure the web browser not to connect to the local address via the
proxy server.
Wi n d o w s :
Select Control Panel > Network and Internet > Internet Options > Connections > LAN settings > Proxy
server, and then congure not to use the proxy server for LAN (local addresses).
Administrator's Guide
Solving Problems
119
119


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