DMZ on 5031NV not working

Question

I just installed U-verse internet at my house and was trying to setup my Linksys EA6500 with the UV 5031NV. I want to put the 5031 in bridge/ passthrough/ DMZ mode. I tried with no luck. Waht happens is that if my Linksys get an private IP from the 5031 is able to get internet connection. When I setup DMZ+ on the 5031 to my Linksys, this one lost connection. A couple of things to note: When I enable DMZ+ my linksys receive the public IP from the 5031, and DNS is 192.168.1.254 what I think is ok. I tested with other devices, like a laptop and a tablet, to set them to DMZ and the issue is the same, even it shows the pubic IP, there is no connection to internet. I guess something is wrong with the U-verse device, but any ideas should help Thanks

Answer 1

   This from Computer Joe shuld work:
This is what I did to use an "internal" router. I set my "internal" router to use DHCP for the WAN address, plugged it's WAN port in to the RG, reboot the "internal" router, let the RG assign a local address to the "internal" router and then set that address to the DMZ in the RG's management interface. When I go to the "internal" router's management interface it shows as having the same WAN, gateway, and DNS addresses that the RG uses.
I set the "internal" router to assign addresses to "my" side of the network in a different IP range than what the RG uses (192.168.2.* instead of 192.168.1.*) but using the same subnet mask (255.255.255.0). My internet works fine with no interuptions and local network tasks (back ups, streaming, etc.) work as expected.
I can also still access the RG from "my" side of the network when I need to without having to change any network settings or swap any cables. Leave DHCP running on the RG. You do not need to disable the firewall in the RG as the DMZ will open a pinhole through it to the address you pick (your internal router). If you have existing wireless on your router that your satisfied with and want to keep, just make sure to turn off the wireless in the RG.
Good luck
Chris
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