If you play Space Engineers, then you may want to set up a port forward for it. There are multiple reasons to set up a port forward for Space Engineers, for example:
Here we have links to guides for Xbox One and PC specific to Space Engineers. Follow one of the sections below to forward your port now.
Before playing Space Engineers on Xbox One you need to set up a static IP address for your console. After that you should forward the standard Xbox Live port of 3074.
In the case that you're playing Space Engineers on PC then you need to set up a static IP address for your PC and then forward the proper port.