"The Network name is no longer available"

VPN drops the connection.

VPN is very slow.

Symptom: 1. You have setup VPN to connect two offices through DSL line successfully. The both offices can browse over the VPN without problem. You can copy a small file between two offices but it may drop the VPN connection when copying a large file and receive this message: "The Network name is no longer available".

2. You have setup a VPN server in the office for home users accessing through DSL line. The VPN clients can access the office without any problems. However, the speed is very slow. Also, you may receive "The Network name is no longer available" message when you try to copy a file from the VPN client to the Server.

Resolution: modify the MTU.

How to modify the MTU
 

VPN slow issues Browsing over VPN VPN is very slow when accessing folder http://chicagotech.net/netforums/viewtopic.php?p=511#511

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