I've had the Hitron router and dlink wifi extender set up for years without issues.  A couple weeks ago, the extender stopped connecting to the internet.  I did some troubleshooting and could not figure out what changed and assumed the extender died.  I purchased a new Netgear extender and it's giving me the same message about 'no internet'.

The issue must be the Hitron router, but I've gone through the settings and everything looks okay.  Does anyone have suggestions?