by Marcus Reed Updated Apr 12, 2026
Double NAT occurs when you have two routers performing NAT (Network Address Translation) on your network — typically when your ISP-provided gateway is followed by your own router. This can cause problems with online gaming, VPN connections, and port forwarding.
For more information, see Apple Support.
Pro Tip: Document your network settings before making changes. A screenshot of your router's config page can save hours of troubleshooting.
Key Takeaways
Double NAT happens when two devices on your network both perform NAT — usually an ISP modem/router combo plus your own router. Your traffic gets translated twice, causing issues.
Yes. Double NAT can cause strict NAT types, making it difficult to join lobbies, use voice chat, or host games. Bridge mode is the best fix.
![]() |
![]() |
![]() |
![]() |
About Marcus Reed
Marcus is a network technician and tech writer who has configured thousands of routers across major ISPs including Comcast, AT&T, and Spectrum. He brings hands-on expertise to RouterHax's troubleshooting guides and brand-specific setup tutorials. Marcus is passionate about making networking accessible to everyone.
Promotion for FREE Gifts. Moreover, Free Items here. Disable Ad Blocker to get them all.
Once done, hit any button as below
![]() |
![]() |
![]() |
![]() |