MacBook Pro says I'm connected to the internet and lists an IP address, but No Internet Connection.

[pdgraham940]

Firmware V1.0.4.76_10.1.82 just installed with Nighthawk app.

The status bar on my MacBook Pro shows a strong signal. The Network Preferences says "Wi-Fi is connected to NETGEAR35-5G-1 and has the IP address 192.168.1.2." But when I try to access Internet it says I'm not connected to the Internet. Sometimes I will get a page but other times the message that I have no connection. 

[plemans]

1. what modem/gateway is the router connected to? 

2. does it do it for all the bands? 
3. is any other device having issues or just the mac book?

[pdgraham940]

I'm away from the wifi site so....

1. Modem was supplied by Hughes Net.

2. It occurs on all bands.

3. It occurs on all devices.

[plemans]

Hughes net supplies gateways with their own integrated routers. It causes a double nat. 

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. Not sure if the hughes net gateway supports this. 
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-M...