Hi there,

    I've been with this problem form quite some time and is extremely
annoying. I just cannot figure out how to deal with it. If somebody can
give me a hand with it, I'd appreciate it.
    Whenever I establish a DUN connection, be it DialUp or VPN,
whatever the target is, it connects sucessfully, but after a very short
time, seomtimes a minute, sometimes a few minutes, but never more than
10 minutes, it disconnects on its own, just as if I had disconnecte
dit. No error message, and no reconnection is done.
    I almost never use dialup, so fomr quite some time I thought it was
my VPN server.
    But a few weeks ago, during a trip I found that it was ANY VPN and
ANY DUN as well.

    I have Windows XP Pro SP 2

    Here you have an example of the issue:

Event Type:    Information
Event Source:    RemoteAccess
Event Category:    None
Event ID:    20158
Date:        24/08/2006
Time:        16:42:34
User:        N/A
Computer:    MICHELLE
Description:
The user admin successfully established a connection to VPN Cueva DW
using the device VPN6-1.

Event Type:    Information
Event Source:    RemoteAccess
Event Category:    None
Event ID:    20159
Date:        24/08/2006
Time:        16:42:47
User:        N/A
Computer:    MICHELLE
Description:
The connection to VPN Cueva DW made by user admin using device VPN6-1
was disconnected.


    Somewhere I found that ICS/ICF could be the cause, so I tried
disabling it, but that produced no change at all.
    Any ideas is gladly welcomed.

    Thanks in advance!!

    Javier

This search result may help,

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....
http://www.chicagotech.net/troubleshooting/eventid20159.htm

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
  Hi there,

      I've been with this problem form quite some time and is extremely
  annoying. I just cannot figure out how to deal with it. If somebody can
  give me a hand with it, I'd appreciate it.
      Whenever I establish a DUN connection, be it DialUp or VPN,
  whatever the target is, it connects sucessfully, but after a very short
  time, seomtimes a minute, sometimes a few minutes, but never more than
  10 minutes, it disconnects on its own, just as if I had disconnecte
  dit. No error message, and no reconnection is done.
      I almost never use dialup, so fomr quite some time I thought it was
  my VPN server.
      But a few weeks ago, during a trip I found that it was ANY VPN and
  ANY DUN as well.

      I have Windows XP Pro SP 2

      Here you have an example of the issue:

  Event Type: Information
  Event Source: RemoteAccess
  Event Category: None
  Event ID: 20158
  Date: 24/08/2006
  Time: 16:42:34
  User: N/A
  Computer: MICHELLE
  Description:
  The user admin successfully established a connection to VPN Cueva DW
  using the device VPN6-1.

  Event Type: Information
  Event Source: RemoteAccess
  Event Category: None
  Event ID: 20159
  Date: 24/08/2006
  Time: 16:42:47
  User: N/A
  Computer: MICHELLE
  Description:
  The connection to VPN Cueva DW made by user admin using device VPN6-1
  was disconnected.


      Somewhere I found that ICS/ICF could be the cause, so I tried
  disabling it, but that produced no change at all.
      Any ideas is gladly welcomed.

      Thanks in advance!!

      Javier

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