Received this error on a slow running PHP script on my server:

The FastCGI process exceeded configured activity timeout IIS

How I resolved it:

  1. Goto %windir%\system32\inetsrv\fcgiext.ini
  2. Locate the ActivityTimeout parameter and copy it into the [php] section of the ini file
  3. Make sure the ActivityTimeout parameter is uncommented out
  4. Change the number to whatever you want (units are seconds)

(by default ActivityTimeout is set to 30 secs)

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