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Forum Discussion
RCorley00
May 16, 2022Initiate
Connect ORBI RB753S to AT&T Wifi gateway
I just upgraded from Xfinity to AT&T fiber. With Xfinity, I had a surfboard modem that was wired to my Orbi RB753S and all works fine. AT&T installed their wireless gateway, which is also fine. Bu...
- May 16, 2022
Can you connect it? Sure.
but you'll need (want? ) to fix the double nat it causes.
A double nat happens when you cascade more than 1 router.
https://kb.netgear.com/30186/What-is-Double-NAT
Fixes? There’s 3 options but only use 1.
1. Put the modem/gateway in modem only/pass through mode. This disables its routing functions. ATT gateways haven't always worked that well in passthrough mode.
2. Leave the modem/gateway in router mode but put the Netgears IP address into its DMZ. This forwards the data to the netgear. You can either leave the modem/gateway’s wireless enabled or disabled. Just make sure its using a different wifi channel to prevent interference
3. Put the Netgear into access point mode. This disables its routing functions. Wifi/ethernet still works but it does disable some features.
https://kb.netgear.com/26765/Which-features-are-disabled-on-my-NETGEAR-router-when-it-is-set-to-AP-Mode
plemans
May 16, 2022Guru - Experienced User
Can you connect it? Sure.
but you'll need (want? ) to fix the double nat it causes.
A double nat happens when you cascade more than 1 router.
https://kb.netgear.com/30186/What-is-Double-NAT
Fixes? There’s 3 options but only use 1.
1. Put the modem/gateway in modem only/pass through mode. This disables its routing functions. ATT gateways haven't always worked that well in passthrough mode.
2. Leave the modem/gateway in router mode but put the Netgears IP address into its DMZ. This forwards the data to the netgear. You can either leave the modem/gateway’s wireless enabled or disabled. Just make sure its using a different wifi channel to prevent interference
3. Put the Netgear into access point mode. This disables its routing functions. Wifi/ethernet still works but it does disable some features.
https://kb.netgear.com/26765/Which-features-are-disabled-on-my-NETGEAR-router-when-it-is-set-to-AP-Mode