FIX: Forefront Threat Management Gateway 2010 prematurely closes the connection to the web server when a web proxy client uploads data by using an SSL tunnel

Fix it for me

To fix this problem automatically, click the Fix it button or link. Then click Run in the File Download dialog box, and follow the steps in the Fix it wizard.

Notes

• This wizard may be in English only. However, the automatic fix also works for other language versions of Windows.

• If you are not on the computer that has the problem, save the Fix it solution to a flash drive or a CD and then run it on the computer that has the problem.

Then, go to the "Did this fix the problem?" section.

Let me fix it myself

To create and run the script, follow these steps:

1. Start Notepad. To do this, click Start, click Run, type notepad.exe in the Open box, and then click OK.

2. Paste the following script into the new Notepad file:

   Const SE_VPS_GUID = "{143F5698-103B-12D4-FF34-1F34767DEabc}"
   Const SE_VPS_NAME = "ProxySocketSendBufSize"
   Const SE_VPS_VALUE = 8192
   Sub SetValue()
       ' Create the root object.
       Dim root  ' The FPCLib.FPC root object
       Set root = CreateObject("FPC.Root")
       'Declare the other objects that are needed.
       Dim array       ' An FPCArray object
       Dim VendorSets  ' An FPCVendorParametersSets collection
       Dim VendorSet   ' An FPCVendorParametersSet object
       ' Obtain references to the array object
       ' and the network rules collection.
       Set array = root.GetContainingArray
       Set VendorSets = array.VendorParametersSets
       On Error Resume Next
       Set VendorSet = VendorSets.Item( SE_VPS_GUID )
       If Err.Number <> 0 Then
           Err.Clear
           ' Add the item
           Set VendorSet = VendorSets.Add( SE_VPS_GUID )
           CheckError
           WScript.Echo "New VendorSet added... " & VendorSet.Name
       Else
           WScript.Echo "Existing VendorSet found... value- " &  VendorSet.Value(SE_VPS_NAME)
       End If
       if VendorSet.Value(SE_VPS_NAME) <> SE_VPS_VALUE Then
           Err.Clear
           VendorSet.Value(SE_VPS_NAME) = SE_VPS_VALUE
           If Err.Number <> 0 Then
               CheckError
           Else
               VendorSets.Save false, true
               CheckError
               If Err.Number = 0 Then
                   WScript.Echo "Done with " & SE_VPS_NAME & ", saved!"
               End If
           End If
       Else
           WScript.Echo "Done with " & SE_VPS_NAME & ", no change!"
       End If
   End Sub
   Sub CheckError()
       If Err.Number <> 0 Then
           WScript.Echo "An error occurred: 0x" & Hex(Err.Number) & " " & Err.Description
           Err.Clear
       End If
   End Sub
   SetValue

3. On the File menu, click Save As, and then save the script as setProxySocketSendBufSize.vbs.

4. On the File menu, click Exit to exit Notepad.

5. Double-click the .vbs file that you saved in step 3.

Did this fix the problem?

• Check whether the problem is fixed. If the problem is fixed, you are finished with this section. If the problem is not fixed, you can contact support.

• We would appreciate your feedback. To provide feedback or to report any issues with this solution, please leave a comment on the "Fix it for me" blog or send us an email.