An NDIS driver must be assigned to the adapter. Certain Novell installations may use the Novell ODI driver exclusively - and LANScan will not find the card. Network registry settings are automatically made when Windows network settings are modified. Sometimes, when network adapters are changed, the registry can get corrupted in a way that allows network communications to continue. LANScan requires a complete, valid set of registry settings.
Any errors can cause initialization to fail.
The best solution is to remove all network drivers, reboot, and let Windows re-install the drivers. Changing Active Test and adding Events simultaneously will not work correctly. Save the device and the test settings first, then re-enter configuration to add events. LANScan updates slowly - Version 1.40 of LANScan does not properly manage the number of points plotted on a trend graph, and the screen refresh can take a significant amount of CPU processing when multi line trending is enabled. This problem is fixed in Version 1.60 and above.