@chuckiewoneeye 

From the other network, devices on it can't reach the internet. I would liike to be able to have multiple networks behind the main deco unit and be able to access the internet from all networks and not just the main Deco network.

Is this possible?  If your device is a router as it states, then this should be fairly straight forward. Otherwise, I have to bypass the Deco unit using another device which I would lke to avoid if possible.

  @chuckiewoneeye first there's no way to disable NAT on the Deco so any other network you have will be behind a double NAT that has its own set of problems.

In my experience routers that do allow you to disable NAT don't "behave" as you would expect but maybe I just didn't get the static rounting right when I tried to to this.

My conclusion was that domestic routers aren't designed to cater for sub-netting like you would do with a comercial router.