@NeroMorte you can close this i resolved my problem i was looking in Decos App settings and under Internet Connection > IP Address i noticed was set to 10.0.0.133 and my main router was dmzing to 10.0.0.2 and i had setup a dedicated ip for second router but it wasn't obeying the rules so on Decos app i clicked IPv4 Connection and changed it to a static ip i was dmzing to so now everything is forwarding properly because Decos has correct local ip of 10.0.0.2 again