IE Integrated Windows Authentication problem after TCP RST from server on Windows 7 and Above

I am trouble-shooting a weird problem with IWA on IE 8 and above when running on Windows 7 and above.

The issue is that IE displays the IWA prompt after the server (for reasons yet unknown) resets the connection. The web page that exhibits the problem refreshes itself every 30 secs. After roughly 10mins the server responds to the HTTP GET with TCP RST.

HTTPHTTP:Request, GET /SomePage.aspx, Query:some&query
TCPTCP:Flags=.....R.., SrcPort=HTTP(80), DstPort=...

At this point, on a Windows XP machine, IE will open a new connection, then go through

HTTPHTTP:Request, GET /SomePage.aspx, Query:some&query
HTTPHTTP:Response, HTTP/1.1, Status: Unauthorized, URL: /SomePage.aspx Using Multiple Authetication Methods, see frame details
HTTPHTTP:Request, GET /SomePage.aspx, Query:some&query, Using GSS-API Authorization
HTTPHTTP:Response, HTTP/1.1, Status: Unauthorized, URL: /SomePage.aspx, Using GSS-API Authentication
HTTPHTTP:Request, GET /SomePage.aspx, Query:some&query, Using GSS-API Authorization
HTTPHTTP:Response, HTTP/1.1, Status: Ok, URL: /SomePage.aspx

On windows 7 and windows 2008 r2, after the first 401 from the server, IE displays the IWA prompt; looks like it gets confused and thinks the credentials are invalid and needs new ones from the user.

Same thing ran fine in Chrome on windows 7/2008r2, same behavior as IE on windows xp.

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Stoyan Sabev