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Cant reuse Http connections. No KeepAlive header. HttpWebRequest.KeepAlive = true;

Posted By:      Posted Date: September 30, 2010    Points: 0   Category :.NET Framework

I tried to reuse Http connections setting KeepAlive but it simply doesnt work. I looked in the Http messages using Feedler and Charles but all I can see is Connection: close in response. I am sure I use HTTP 1.1 as it says so in the request.

I see 600 TCP connections in wait state opened by 10 threads. Each thread run one http request at a time.

There is also bunch of responses which say - the unauthenticated request. The service requires digest authentication. Why some requestes fail to be authenticated?? 

P.S. I just found this thread: http://social.msdn.microsoft.com/Forums/en-US/netfxnetcom/thread/87bc7029-ce23-438a-a767-f7c32dcc63a7 and I tried to set UnsafeAuthenticatedConnectionSharing = true but still my TCP connections are not reused.

    static void GetRest(string rest) 

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