Try uninstalling / reinstalling the SLR app, and making sure that it's installed in its default location (
appdata/local/SLR VR Application)
Once you uninstall, also delete the folder in
appdata/local/SLR to clear any settings, and then try reconnecting the handy and whatnot. It might also be a good idea to set a new connection key on your handy and to make sure you have the newest firmware while you're at it.