Event ID 20159

Event ID 20159 - The connection to <connection_name> made by user <user_name> using device <com_port> was disconnected.

Symptom: 1. There is the following Event ID 20159 logged in the Event Viewer: The connection to <connection_name> made by user <user_name> using device <com_port> was disconnected.

2. After establishing a VPN server, the connection may be disconnected in several minutes.

VPN connection is disconnected after several minutes

VPN connection is disconnected after several minutes. We have been seeing more and more cases like this one. We don’t really know the causes, ...
www.chicagotech.net/VPN/vpn3minutes.htm

VPN Issues

VPN connection appears with a red X VPN connection is disconnected after several minutes Missing WAN Miniport L2TP and PPTP VPN XP Client Disconnects After ...
www.chicagotech.net/vpn.htm

VPN slow issues

Symptom 2: When running an application over the VPN, it takes over 10 minutes to open it. Causes: 1. The application is written for a LAN no for a WAN. ...
www.chicagotech.net/vpnslow.htm