I have spent over 40 work hours on this problem.  I have a C# form that tranfers the customer to the hosted form.  Everything works great as far as the payment.  but then I get this message.

An error occurred while trying to report this transaction to the merchant. An e-mail has been sent to the merchant informing them of the error. The following is the result of the attempt to charge your credit card.

This transaction has been approved.

It is advisable for you to contact the merchant to verify that you will receive the product or service.

There are other threads that have this error but none fix the problem I am having.  I have read the section in the DEV guide over 20 times.

Here is the latest attempt example of the form I am using.  The address and Hash value for the fingerprint are handled in a code behind and I also tested that an invalid fingerprint would cause the payment to fail so it is not that.

    <form id="form1" runat="server" method="post" action="">
        <INPUT TYPE=HIDDEN NAME="x_method" VALUE="CC">
        <input id="HiddenValue" type="hidden" value="Initial Value" runat="server" />
        <input type='hidden' runat="server" name='x_login' id='x_login' />
        <input type='hidden' runat="server" name='x_amount' id='x_amount' />
        <input type='hidden' runat="server" name='x_description' id='x_description' />
        <input type='hidden' runat="server" name='x_invoice_num' id='x_invoice_num' />
        <input type='hidden' runat="server" name='x_fp_sequence' id='x_fp_sequence' />
        <input type='hidden' runat="server" name='x_fp_timestamp' id='x_fp_timestamp' />
        <input type='hidden' runat="server" name='x_fp_hash' id='x_fp_hash' />
        <input type='hidden' runat="server" name='x_test_request' id='x_test_request' />
        <input type='hidden' runat="server" name='x_first_name' id='x_first_name' />
        <input type='hidden' runat="server" name='x_last_name' id='x_last_name' />
        <input type='hidden' runat="server" name='x_faddress' id='x_address' />
        <input type='hidden' runat="server" name='x_city' id='x_city' />
        <input type='hidden' runat="server" name='x_state' id='x_state' />
        <input type='hidden' runat="server" name='x_zip' id='x_zip' />
        <input type='hidden' runat="server" name='x_country' id='x_country' value='United States' />
        <input type='hidden' runat="server" name='x_email' id='x_email' />
        <input type='hidden' runat="server" name='x_phone' id='x_phone' />
        <input type='hidden' name='x_show_form' value='PAYMENT_FORM' />
        <input type='hidden' name="x_delim_data" id='x_delim_data'  value="FALSE"/>
        <input type='hidden' name="x_relay_response" id='x_relay_response'  value="TRUE"/>
        <input type='hidden' name="x_relay_url" id="x_relay_url" value="http://qa.aiicfl.net/CustomerPortal/RecPay.aspx" />
        </form>

I get an email for the transaction and all of the information is correct and I get a failure email.

Authorize.Net Developer Center Merchant,
Your script timed out while we were trying to post transaction results to it.

   Transaction ID: 2201704933

Here are my settings in my account

The URL I am using is above and if you click on it, you will see it is aviable externally and is doing nothing in the background.  It is just text.  We took out any processing code as per a conversation with Authorize.Net because they said our code was taking too long.  This is as simple as it gets.

Can anyone please tell me what is going on.  I have tried over 1000 times with different combinations of variables and websites.  I pointed it to many other public sites and none of them work.  There are no ASP.Net examples to make matters worse and I have spent hours looking in the threads but nothing helped.

Thanks,

Jim