We require both hotfixes to correct the issue as we have servers running WS2008R2 and WS2012
https://support.microsoft.com/en-us/kb/2828841
https://support.microsoft.com/en-us/kb/2828842
Symptoms
When you send many concurrent requests that have the same SessionId to an ASP.NET 4.5 web application, some requests may freeze at theRequestAcquireState stage.
Please provide a download link or a solution
Thanks in advance.