Despite turning UNF off the data from browsers are still gathered

If you don’t want to gather data concerning visited websites, remember – apart from UNF, there is also Uplook Network Filter extentions – introduced in statlook 11.2 – to turn off. Both UNF and the extension ought to be turned off separately.

Solution: 

1. Go to Tools -> Options menu in Master console 

2. Enter Personnel -> Uplook Network Filter tab and unmark computers which won’t be monitored anymore.