FastCGI Error 0x80004005
<p>We have php 5.4.38 installed on IIS6.
I have a test.php script. There is one single row in it:</p>

<p><code>echo "test";</code></p>

<p>I use my browser and visit the page. I see "test" on it. Ok. Then I reload the page several times and it still shows what it should. But after 15 or maybe 20 times of fast page reloading, I get FastCgi Error. After this happens, for about 5 seconds no page on this server can be shown. We tried to reach it from client computers from different IP-s, different networks. "Everything" just stops. After 5 seconds it works again.</p>

<p>What can we do to solve this problem?</p>

<p>When error appears, this is what the server returns:</p>

<blockquote>
  <p>FastCGI Error</p>
  
  <p>The FastCGI Handler was unable to process the request. Error Details:</p>
  
  <p>The FastCGI process has failed frequently recently. Try the request
  again in a while Error Number: -2147467259 (0x80004005). Error
  Description: Unspecified error HTTP Error 500 - Server Error. Internet
  Information Services (IIS)</p>
</blockquote>