DNS hijack found

Wi-Fi Inspector is reporting a DNS hijack found on my Netgear R6400. I did a hard re-set on the router and Avast is still reporting the hijack. Any chance this is a false positive? If not, what is the next step?

I have not tried changing the DNS address as it seems the hard re-set should have resolved the problem, if there is one.

Thanks!

What is the full message from avast? … screenshot

Is your router firmware updated? >> https://www.netgear.com/support/product/R6400.aspx#Firmware%20Version%201.0.1.44