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How to fix "500 select failed: An operation was attempted on something that is not a socket" errors

This extremely rare error during install of MIDAS may be caused by a number of issues within your server environment, including:
  1. A WinSock issue on your server.
  2. You're installing MIDAS in a Virtual Machine environment where networking/virtual networking has been incorrectly setup, or has been recently changed.
In relation to the first possible cause, Microsoft have a related KB article on this error here. However, other online sources indicate that you may be able to fix your WinSock issue by simply issuing a "netsh winsock reset" command from a cmd prompt, and then restarting your system.

In the case of the second possible cause, please check your VM's networking configuration to ensure that the MIDAS installer can establish an external Internet connection.

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MIDAS » KB » Support » Article 00119

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