Troubleshooting 135
Digital Certificate Problems
Problem Action
The Certificate Signing Request
(CSR) / Upload Signed Certificate
is not displayed.
Create a self-signed certificate and enable SSL/TLS Server Communication.
For details, see "Preparing to Use HTTPS Communication" on page 106.
The digital certificate cannot be
uploaded.
Confirm validity period of the digital certificate as well as the time setting of the
device.
Confirm that the password is correct.
Confirm that the file type is PKCS #7/#12 or x509CACert (extension:
p7b/p12/pfx/cer/crt).
Confirm that the attribute information (Key usage/Extended key usage) of the
digital certificate to be imported is set correctly.
Use Internet Explorer
®
.
Although a digital certificate was
uploaded, it is not displayed.
To upload a digital certificate for use with the device (own device), import the
secret key and a digital certificate of the PKCS #12 (p12/pfx) format as a pair.
Server validation is not operating
correctly.
Although uploading a root certificate (Trusted) to use for server authentication, an
intermediate certificate may be required when validating the path.
When executing a digital certificate file with the certification authority, create the
digital certificate with a format including all paths and then import that digital
certificate.
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