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If the printer is not recognized while using a USB cable, make sure the cable is connected securely at
both ends, and that you are not using a USB hub. You may also need to try a different USB cable. Your
printer does not support USB 3.0 cables.
Parent topic: Solving Network Problems
Solving Network Security Problems
Check these sections if you have problems using the network security features.
Cannot Create the Secure IPP Printing Port
Cannot Update a Certificate or Create a CSR
Cannot Import a Digital Certificate
Deleted a CA-signed Certificate
Digital Certificate Warning Messages
Parent topic: Solving Problems
Cannot Create the Secure IPP Printing Port
If you cannot create the secure IPP printing port, try these solutions:
• Make sure you specified the correct server certificate for SSL/TLS communication using Web Config.
• If you are using a CA certificate, make sure it is imported to the computer that is accessing the
product.
Parent topic: Solving Network Security Problems
Related tasks
Configuring a Server Certificate for the Product
Cannot Update a Certificate or Create a CSR
If you cannot update a self-signed certificate or create a CSR for a CA-signed certificate, try these
solutions:
• Make sure that you entered a Common Name setting in Web Config.
• Make sure the Common Name setting does not contain unsupported characters or is divided by a
comma. Correct the setting and update the certificate again.
Parent topic: Solving Network Security Problems
Related references
CSR Setup Settings
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