WFP basic stream injection inline breaks internet connectivity

Hi,

 

I am developing a Windows Filtering Platform (WFP) filter driver that does internet restriction and redirection.  I have a few Windows 8 machines that has Norton Internet Security installed.  When I try to activate the stream injection filtering with Norton installed, I loose all internet and network connectivity.  I have reviewed the recent history logs in Norton - and no entries are added - which suggest a possible software conflict?  If I do the stream injection out of band (OOB) it does not cause a problem - only with inline injection.  Any help would be greatly appreciated.

 

Rynier