Forgive me, but what are we looking for on that page to get Duma 3.3?
Under 'Firmware and Software Downloads' it says
"Firmware Version 1.0.2.86" with "Latest" next to it.
My current firmware seems to be 1.0.64.18_5.0.18 and Duma 3.1.1
Furthermore, I downloaded the XR1000-V1.0.2.86.zip, and when I extracted it, these are the files:
-XR1000-V1.0.2.86_2.1.40.chk
-XR1000-V1.0.2.86_Release_Notes.htm
According to 'Nighthawk Pro Gaming Router Model XR1000' user manual on page 151 it says
"Note: The correct firmware file uses an .img extension."
.chk files are usually recovery fragment files
Any help would be appreciated