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Case Study VPN Connection issues after installed Windows server 2003 SP1

Situation: The client has been experiencing some VPN connection issues after they installed Windows Server 2003 SP1. The main office has T1 line. The branch office uses DSL line and some home users who are using DSL too. They can establish the VPN, but they experience these issues:

  1. The connection may drop in 2 or 3 minutes.
  2. The VPN client may receive "The Network name is no longer available" message when they transfer the data.
  3. The RDC to TS may have black screen.

Resolution: Set my VPN client MTU to 1400.

 To modify MTU, please refer to this page, How to change MTU settings for PPP or VPN.

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