Can anyone explain why I’d get a “router behind router error” and how to fix it?  For 2+ years I’ve had att gigabit internet.  Fed that to a netgear nighthawk and life was great.  Today my wife got that error Message while trying to login to work.  So I tell her to pull the plug out the nighthawk into att’s modem/router.  That got her through the workday.  Since then I’ve had to eliminate the nighthawk and run everything either wired or wireless from the art equipment.  I used to have everything wired or wireless from the nighthawk.  Called att but they weren’t helpful.  As long as their equipment worked and I had internet problem solved.  I read to turn off WiFi from the att router but that didn’t fix the issue. Any other settings I should change on either piece of equipment?   They both up to date firmware wise.  Just puzzled on why out of the blue it happened. 

I’m up and running off att’s equipment but really want it back how it was. Now my damn thermostat won’t stop saying Not connected to internet! <——now that is truly a “trivial annoyance”.  Any advice is welcomed.

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