Various network problems after installation of Norman Endpoint Protection
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Date published: 2010-02-04 Date updated: 2011-01-14
Product:
Endpoint Protection
Module(s):
Norman Security Driver
Operations System(s):
Windows XP 32 bits
Windows Vista 32 bits
Windows 2000
Windows XP 64 bits
Windows Vista 64 bits
Windows 2003 Server
Windows 2008 Server
Windows 7
Problem description
Some customers have reported various network problems after installation of Norman Endpoint Protection. Problems reported are:
- No or slow network access
- Problems connecting to dabases
- Problems connecting to servers
- Problems with VPN clients
Problem solution
The problem is related to the Norman Security Driver (nnetsec.sys). The main task for this driver is passive discovery of network devices. It listens to network traffic, and reports back all network devices it recieves traffic from to the NEM console. As a temporary workaround you can deactive the driver on the network card
How to deactivate the driver
- Open Control Panel and navigate to Network Connections
- Right click on the network card and choose Properties
- Remove the checkmark by Norman Network Security
Update 14 april 2010: An update that will fix this problem was released today.
Update 30 june 2010: A new update fixing remaining issues was released today.
