I don’t think you need registration to view the Wiki. Sure, if you want to contribute new content to it then you will need registration.
Are you trying on the 5 GHz band or the 2.4 GHz band? The signal will be stronger on the latter and so that may be preferable for an easier life (unless you have a really fast internet connection). Traveling Experiences
Bluetooth worked out of the box for me - although what types of device you can actually pair with is hit-and-miss at the moment i.e. some profiles not supported. Keyboard worked for me but I believe that car or headset are not currently supported.