kala-tamin HTTP 403.9 - Access Forbidden: Too many users are connected

HTTP 403.9 - Access Forbidden: Too many users are connected

I have created an application in VStudio. It ran nicely in debugging mode, but my computer became slower and slower as I worked until it finaly became frozen. after I manualy restarted it, the app wasn't running any more in debug and I get this execption in the browser.

  1. Only I am connected right now to the app.
  2. I have restarted the computer so there coudn't be any instance of a client connected
  3. I have removed and reinstalled the IIS

what is wrong?

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Is this happening on an XP Pro development machine? Sometimes, if you have many javascripts/images/css files on a page as well as IFrames and multiple AJAX calls, your one page will run out of connections in a development environment.

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There are two ways to overcome this.

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  1. Switch off HTTP Keep-Alives. In IIS manager, go to the Web Site tab and under connections, uncheck the HTTP Keep-Alives Enabled checkbox.

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    Don't do this in a production environment as it will slow down your site a lot..
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  2. Increase the number of concurrent connections. You’re limited by default to 10 concurrent connections by design, but this can be increased.

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    First, make sure your default windows script host is set to the console (cscript.exe) one.

    In a command prompt run:. cscript //h:cscript.
Next, let’s increase the connection limit to 40..
C:\Inetpub\AdminScripts\adsutil set w3svc/MaxConnections 40 
You can make the IIS connection timeout more aggressive so connections don’t last as long.. Set the default script host back to windows:.
cscript //h:wscript 


Only 2 concurrent connections are allowed for localhost account.

Since you are testing the website on your server and I suppose you are using IE as your browser.. When IE requests for the web page 2 connections are maintained.

This is the possible reason for the error you are seeing..

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