## What is Double NAT?
When you plug your own router into an ISP's modem-router combo (like an Xfinity XB7 or AT&T BGW320), you now have TWO devices doing Network Address Translation. Your gaming device is behind two firewalls, two NAT tables, and often sees "NAT Type: Strict" which causes connection issues.
## What Bridge Mode Does
Bridge Mode turns off the ISP gateway's Wi-Fi and routing functions. It becomes a "dumb modem" that simply passes the internet signal through to your router. Your router handles everything.
## How to Enable Bridge Mode on Xfinity XB7/XB8
1. Open a browser and go to 10.0.0.1
2. Log in (default: admin / password)
3. Go to Gateway > At a Glance
4. Under "Advanced Settings," enable Bridge Mode
5. Your XB7's Wi-Fi will turn off — now connect your own router to the XB7's LAN port
## The Ping Improvement
I've tested this in homes across Nashville. Gamers typically see a 10-20ms reduction in ping after enabling Bridge Mode — because traffic no longer makes two NAT translation hops. For competitive games like Warzone or Valorant, this matters.