Are you trying to use BrowserHax in emuNAND? I found that with MenuHax enabled, loading BrowserHax in emuNAND will close the browser 80% of the time and spit out 'An error has occurred'. The 20% that it does work, the system will freeze while trying to reload the Home Menu.
The other possibility is that you're using a public WiFi that blocks access to mtheall.com, since you said it's a connection error you keep getting.
It happens to me as well, my O3DS XL is on 9.2.0 and browser version is 1.7567 and everytime I scan the code it shows communication error after a while, and I do have all the files required in the root of my SD card. The page also wont load and if let too much time it will start opening up pop-up sites. What is it that is missing? Also using private internet connection.
Not that. Jeez. Listen to what im posting. Im asking why ive never gotten Menuhax from doing the browserhax. I followed all the instructions. I doubt youd know, but since you seem to be a little smart in that area...