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A connect may be lost to a proxy server or to a NLB server if you create a VPN to a Windows Server 2008 R2-based domain by using SSTP

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Consider the following scenario:
  • You remotely connect to a Windows Server 2008 R2-based domain.
  • The remote connection is a virtual private network (VPN) connection that uses the Secure Socket Tunneling Protocol (SSTP).
  • When no traffic is detected after 70 seconds, the SSTP connection between the client and the server is maintained by the Hello interval. The Hello interval is the time before a Hello packet is sent between the client and the server.
In this scenario, the connection to a proxy server or to a network load balancing (NLB) server may be lost.
This issue may occur because the proxy server or the NLB server expires its status usually in less than 60 seconds, and because the default Hello interval between the client and server is 70 seconds.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
To resolve this issue, configure the Hello interval to less than 60 seconds.

To configure the Hello interval to 30 seconds, change the HelloTicks value in the registry. To do this, follow these steps:
  1. Click Start, click Run, type regedit, and then click OK.
  2. Locate and then click to select the following registry subkey:
  3. Right-click HelloTicks, and then click Modify.
  4. In the Value data box, type 2, and then click OK.
  5. On the File menu, click Exit to exit Registry Editor.

Article ID: 983256 - Last Review: 12/12/2015 04:38:09 - Revision: 1.0

Windows Server 2008 R2 Datacenter, Windows Server 2008 R2 Datacenter without Hyper-V, Windows Server 2008 R2 Enterprise, Windows Server 2008 R2 Enterprise without Hyper-V, Windows Server 2008 R2 Foundation, Windows Server 2008 R2 Standard, Windows Server 2008 R2 Standard without Hyper-V

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