Source:  ZENworks for Servers; Policy and Distribution Services; Tiered Electronic Distribution; Subscriber Agent

Explanation:  This is a general I/O error indicating that the Subscriber Agent cannot read the certificate file for the Distributor that sent the Distribution it is starting to process.

Possible Cause:  Unknown.

Action:  Make sure you have followed the instructions in Creating and Copying Encryption Certificates in Policy and Distribution Services in the Administration guide.