RE: ISA + SP1 on Windows 2003 RC2

  • From: "Thomas W Shinder" <tshinder@xxxxxxxxxxxxxxxxxx>
  • To: "[ Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Mon, 14 Apr 2003 18:42:57 -0500

Hi Gabriel,

Have you set a limit on the number of connections on the Outgoing Web
Requests listener?


Thomas W Shinder 
ISA Server and Beyond: 
Configuring ISA Server: 

-----Original Message-----
From: Gabriel O. Zabal [mailto:gabriel@xxxxxxxxxx] 
Sent: Monday, April 14, 2003 3:36 AM
To: [ Discussion List]
Subject: [isalist] ISA + SP1 on Windows 2003 RC2

I have a problem with the W3PROXY service, it responds to the clients:

HTTP 503 Proxy is busy - A connection to the server could not be made
because the limit on the number of concurrent connections for this
has been reached. (1238)

The server is also a DC in win2003 native mode
IIS Installed.
Tried also the recommendations
* The registry key for DisableBacklogMonitor = 1 (DWORD)
* The Disabling the socket pooling for the IIS.
* The performance tuning for the ISA.

Additional information:
If check the app filter (HTTP Redirector) to route the request directly
to the server it works, so it bypass the proxy.

Any help would be very usefull.

Gabriel Zabal

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