I need to block all trafic for one application except one IP but windows firewal takes block as a priority so whitelisting that IP doesn't work.
Is there a some other way to do this ? Thanks in advance
So multiple computers within your network have an app installed. And you do not want any of those computers to have network and/or internet access excluding the chosen computer that also has that app - correct?
It is the app that needs to be blocked or allowed through the Windows Defender Firewall.
Is the computer hosting the app using DHCP? DHCP assigned IP's will change.