Failed To Request A Local Certificate; Failed To Retrieve Crls - 3Com 4500 PWR 26-Port Configuration Manual

The network connection is not proper. For example, the network cable may be damaged or loose.
No trusted CA is specified.
The URL of the registration server for certificate request is not correct or not configured.
No authority is specified for certificate request.
The system clock of the device is not synchronized with that of the CA.
Solution
Make sure that the network connection is physically proper.
Check that the required commands are configured properly.
Use the ping command to check that the RA server is reachable.
Specify the authority for certificate request.
Synchronize the system clock of the device with that of the CA.

Failed to Request a Local Certificate

Symptom
Failed to request a local certificate.
Analysis
Possible reasons include these:
The network connection is not proper. For example, the network cable may be damaged or loose.
No CA certificate has been retrieved.
The current key pair has been bound to a certificate.
No trusted CA is specified.
The URL of the registration server for certificate request is not correct or not configured.
No authority is specified for certificate request.
Some required parameters of the entity DN are not configured.
Solution
Make sure that the network connection is physically proper.
Retrieve a CA certificate.
Regenerate a key pair.
Specify a trusted CA.
Use the ping command to check that the RA server is reachable.
Specify the authority for certificate request.
Configure the required entity DN parameters.

Failed to Retrieve CRLs

Symptom
Failed to retrieve CRLs.
Analysis
Possible reasons include these:
The network connection is not proper. For example, the network cable may be damaged or loose.
No CA certificate has been retrieved before you try to retrieve CRLs.
The IP address of LDAP server is not configured.
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