How to avoid registering a Netgear account just to log in to the admin management UI.
Open start_repeater.html: http://www.mywifiext.net/start_repeater.htm
Works for AP / repeater Netgear Genie EX3700 for e.g.
In case you are doing a factory reset (button on the hardware), make sure to clear all site data from storage: Chrome Developer Tools > Application Tab > Clear Storage > Press button on the bottom "Clear site data". Else you will have endless redirects as the JavaScript is slightly fucked up.