All devices not connecting to internet but show connected to Router

[Angusnme]

Downloaded latest firmware version  v1.0.9.88.102.88 and after reboot some devices show connected to the Router but no internet access.

[antinode]

> Downloaded latest firmware version v1.0.9.88.102.88 [...]

      https://community.netgear.com/t5/x/x/m-p/2069376#M186506

> [...] some devices show connected to the Router but no internet
> access.

   "some devices"?  But others work as expected?

> Model: R7000|AC1900 Smart WIFI Router

   Connected to what?

   Visit http://netgear.com/support , put in your model number, and look
for Documentation.  Get the User Manual (at least).  Read.  Look for the
LED descriptions and "Troubleshoot".  Further reading might not hurt,
either.