No Internet to WiFi connected Items

One "first step" is to open the web management interface and look at how Attached Devices describes connected devices.

There is also a feature under the Security Menu on the Advanced Tab called Access Control.

Brand and model# of ISP Modem the router is connected too? 

IPv6 enabled on the router?

What connected items are connecting to the router? 

Channels used on the router for WiFi? Try 1 and 40 or 11 and 48?

JLMcNeal wrote:

Nighthawk BE9300. Is connected to the internet & WiFi transmitting but no internet connection to connected items, 

I have powered down with no effect. 2.5G hard wired connection has no issue. No idea where to go from here.

Is this a new setup? 

If it is, then you could try phone support.  In addition is the WAN cable connected to to the yellow ethernet socket?  

If a client connected to the 2.5G LAN port works ok, then a problem with DNS is ruled out.  This needs to be a wifi issue of some kind.  What wifi settings (if any) did you change when you did the setup?  In partcular, did you set up MAC access controls?