Nighthawk

What model device do you have? 

What firmware are you on? 

You can manually update it. 

There's a support site with access to manuals, firmware, install guides, etc.
Go to https://www.netgear.com/support/
Type in your model number and from there it'll take you to the above.
Its a great resource to start with.

To add to what plemans suggests:

How do I manually upgrade firmware to my NETGEAR router? | Answer | NETGEAR Support