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Cisco DNE Lightweight Filer causes Remote desktop to fail if you use a windows pptp vpn connection

Posted on 2013-06-10
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Last Modified: 2013-07-22
I have multiple VPN clients installed on my laptop. The cisco VPN client, The sonicwall vpn client and the pptp client from windows 7. When I use the microsoft VPN client over pptp  and then attempt to VPN into any windows server (PPTP passthrough from firewalls) . After the PPTP connection is made using the windows VPN client, when attempting to use remote desktop to any version of windows fails with encryption issues.

If I go to the network settings, then network connections and edit the Local Area Connection and remove the (Cisco) NDE LightWeight Filter ad restart then I can use Windows PPTP and have no issues with using remote desktop.

Then to use the Cisco VPN client I have to reinstall the DNE Light Weight Filter
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Question by:cobaltix27
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Expert Comment

by:surbabu140977
ID: 39240095
This is a problem of the cisco vpn client. Cisco never released an updated version after 2008. They have stopped upgrading it. This problem is not apparent in anyconnect. So it's unlikley that you will get any solution for this unless you move on to anyconnect.

Best,
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Author Comment

by:cobaltix27
ID: 39242912
I do not see the issue on any of my other systems with the Cisco Client. There has to be some condition that sets this off.
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surbabu140977 earned 2000 total points
ID: 39243445
Cisco vpn client NDIS intermediate driver does not match with the default of windows 7 so is known to cause issues in some cases. Hence you see normal behaviour when removed. It's not mandatory to cause issues. So you see it's working in some cases and problems in some.

It's not possible to get an update of this since cisco stopped the vpn client. You can use it problem free in XP.

Best,
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Author Comment

by:cobaltix27
ID: 39271979
Typical lol Thanks for the help. So the answer is Reinstall lol
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