Port Forwarding not working.

When I try to access the port forwarding tab on the xfi app, I get a message saying "Something Unexpected Happened". I already looked for a solution and found out you can access the tab properly via the AI assistant. However, when I access it using that method I just get a message saying "Sorry, we're having trouble gathering a list of your port forwards". I read on another thread that some routers have port forwarding disabled. I have an XB7, so is port forwarding disabled? and if it isn't, what can I do about this