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EZproxy for Windows error select returned 10055

If you are using EZproxy for Windows and encounter the select returned 10055 error, these troubleshooting tips could resolve the issue.


In EZproxy for Windows, if the error:

select returned 10055

appears in messages.txt, then the most common causes are:

  • Windows Firewall does not include EZproxy in its configuration
  • Windows 2003 is running at less than Service Pack 2

When diagnosing this error, if none of this information helps resolve the problem, contact OCLC Support for further assistance.