WF-M5899 Series

User's Guide

> Preparing the Printer and Making Initial Settings > Problems when Making Settings > Cannot Access Web Config

Cannot Access Web Config

The IP address is not assigned to the printer.

Solutions

A valid IP address may not be assigned to the printer. Configure the IP address using the printer’s control panel. You can confirm the current setting information with a network status sheet or from the printer’s control panel.

The TLS version is not supported

Solutions

You need to communicate using TLS version 1.2 or later.

Version 1.0 or 1.1 of TLS is initially disabled.

If you want to communicate with TLS Version 1.0 or 1.1, first access Web Config from a device that can communicate with TLS Version 1.2 or later, and then enable TLS Version 1.0 or 1.1.

Web browser does not support the Encryption Strength for SSL/TLS.

Solutions

SSL/TLS has the Encryption Strength. You can open Web Config by using a web browser that supports bulk encryptions as indicated below. Check you are using the a supported browser.

  • 80bit: AES256/AES128/3DES

  • 112bit: AES256/AES128/3DES

  • 128bit: AES256/AES128

  • 192bit: AES256

  • 256bit: AES256

CA-signed Certificate is expired.

Solutions

If there is a problem with the expiration date of the certificate, "The certificate has expired" is displayed when connecting to Web Config with SSL/TLS communication (https). If the message appears before its expiration date, make sure that the printer's date is configured correctly.

The common name of the certificate and the printer do not match.

Solutions

If the common name of the certificate and the printer do not match, the message "The name of the security certificate does not match···" is displayed when accessing Web Config using SSL/TLS communication (https). This happens because the following IP addresses do not match.

  • The printer's IP address entered to common name for creating a Self-signed Certificate or CSR

  • IP address entered to web browser when running Web Config

For Self-signed Certificate, update the certificate.

For CA-signed Certificate, take the certificate again for the printer.

The proxy server setting of local address is not set to web browser.

Solutions

When the printer is set to use a proxy server, configure the web browser not to connect to the local address via the proxy server.

  • Windows:

    Select Control Panel > Network and Internet > Internet Options > Connections > LAN settings > Proxy server, and then configure not to use the proxy server for LAN (local addresses).

  • Mac OS:

    Select System Preferences > Network > Advanced > Proxies, and then register the local address for Bypass proxy settings for these Hosts & Domains.

    Example:

    192.168.1.*: Local address 192.168.1.XXX, subnet mask 255.255.255.0

    192.168.*.*: Local address 192.168.XXX.XXX, subnet mask 255.255.0.0