Oh funny.... Eset in the Version 12 didn´t have this problem. But the Windows Filtering Platform was the same. Only Eset has changed. So....what? In earlier version of Eset, there was a similar breaking down of network performance. I´d opened a thread in your forum several years ago. And on Symantec I know, that there is not a breakdown in network in this dimension --> downloadrate from 0 to 100 KB with eset 13 and without on 90 to 100 MB!!! An application, which has access to a database on server (over internal 10 Gb network) needs minutes to start! Without eset it lasts approx. 5 to 10 seconds to open!!!