Nighthawk XR300 showing connection to internet but nothing loads

[Capwifi]

We just bought this router and connected it to another via Ethernet. It worked for a few minutes but then stopped. The router is showing full wifi connection and so is my phone but nothing will load. I’m not tech savvy at all, please help!

[plemans · Accepted solution]

What other router do you have it connected to? 

Running 2 routers in router mode causes a double nat and can cause issues. 

https://kb.netgear.com/30186/What-is-Double-NAT

You can put one in access point mode. so:

Modem-----router (in router mode)------router (in access point mode)

[Capwifi]

For clarification we are trying to use this router as a booster for our original router via Ethernet.

[plemans · Accepted solution]

What other router do you have it connected to? 

Running 2 routers in router mode causes a double nat and can cause issues. 

https://kb.netgear.com/30186/What-is-Double-NAT

You can put one in access point mode. so:

Modem-----router (in router mode)------router (in access point mode)