BGW320-505 Modem-Does It have its Router capability to do port forwarding and port Triggering?

Excellent, thank you so much, The only button I didnt really look into. A little different from what I am used to but I think I have it figured out now. I just need port forwarding assignment to a certain device and it seems that it does this! Thanks again.

By putting the router in Passthrough doesn't that cause the speed to drop? The whole reason for getting fiber was the speed

By putting the router in Passthrough doesn't that cause the speed to drop? The whole reason for getting fiber was the speed

Some people have made that observation (typically without sufficient evidence), but there's no reason why it should be the case.  I think most of the time there's no separation between being in Passthrough mode and just having a second router processing the traffic and any issues that might be brought by that.  More likely to cause problems are AT&T Internet Security being active, something that requires traffic inspection on the third party router, or the intermittent Ethernet issues on the BGW320 model gateways.

@1madmouse 

There are valid reasons to use IP passthrough, but for most it’s not a requirement.   For instance, using a personal router for the sake of getting better wifi can happen simply by setting the router into access point mode.  It’s how I roll myself.  But otherwise I wouldn’t assume a performance drop off because of IP passthrough mode as @JefferMC points out.