There are several reasons for 500 error. You may get this error message from your proxy server, also when your server send cookie with back response. What security mode you have used in your script ?

If you are experiencing errors on your IIS7 server, there are a number of things you can do to quickly get to the bottom of the problem, or at least prepare yourself for explaining the problem to us so we can help you. Start here: Troubleshoot IIS7 errors like a pro . If you are experiencing "Page...

If you are experiencing errors on your IIS7 server, there are a number of things you can do to quickly get to the bottom of the problem, or at least prepare yourself for explaining the problem to us so we can help you. Start here: Troubleshoot IIS7 errors like a pro . If you are experiencing "Page...