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Support Article

Unable to run system scanner, getting a Socket Connection error



A developer is unable to run the system scanner to generate a list of hotfixes in the system. A Socket Connection error is experienced.

Error Messages

A Socket Connection error has been encountered

Steps to Reproduce

Attempt to run the system scanner.

Root Cause

The root cause of this problem is defect/misconfiguration in the PRPC operating environment. FTP is being blocked by a security policy.


The explanation for this behavior is as follows:

FTP is being blocked by a security policy.

Instead, try downloading the latest catalog file from the PDN directly at the following URL:

Please note that out of the box in PRPC 6.1 SP2 there is an issue where Update Manager requires that the .ZIP extension of the catalog file be in all capitals. HFix-3787 address this.

Published June 12, 2015 - Updated October 8, 2020

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