How to Ban specific members from Specific forums?
 

I know i can create secondary usergroups and set the permissions to no access for the desired forum. However the complication comes when each member has multiple secondary usergroups. Since a YES always over-rides a NO permission, this method doesn't work for me.

Are there any other solutions? Tks.

You should have the Registered Usergroup have the minimum amount of permissions and then add permissions when you put them into Secondary Groups (since, as you know, you can't take away permissions, you can only add them).