Can I open/foward the same ports to more than one device?
I have both an Xbox 360 console and a Windows 10 laptop with the Xbox app that I would like to open/forward ports to so they can connect perfectly online (open/unrestricted NAT). They are both connected to the Arris BGW210-700 modem.
The Xbox 360 and the Xbox app on the laptop require some of the same ports (ex. TCP/UDP 3074 and 88). The ports are currently forwarded to the Xbox 360, but when I try to forward the same two ports to my laptop, I get this error message: "Pinhole Conflict Detected 88 - 88 ". It seems I can only forward a port number to only one device at a time. I cannot forward the same ports to multiple devices.
Is there anyway to get around this? I remember back in the day, AT&T installed one of those 2Wire modems for us which had a UPnP setting where we didn't have to manually open any ports. I simply just connected my Xbox 360 and gaming laptop to the modem and it connected online just fine with no NAT issues with no adjustment to the modem's settings. What happened to the UPnP setting? Why did they make it so inconvenient now?