Nighthawk RAX40 re-registration and setup issues

[Deillos]

i bought a used RAX40 on ebay and  am having issues with setup as it's previous owner still has it registered as theirs even though i basically got it in my hands now, every time i try to factory reset it it goes no further than this screen in initial setup

[Deillos]

ive tried everything shy of JTAG flashing it

[plemans]

Photos have to be approved by a moderator and it can take a while. 

When you reset, did you push and hold reset for up to 30 seconds while the router was powered on?