I am a big believer in using Boingo and no, I haven't (yet) had this happen. Have you contacted Boingo and requested their help? I am certain Marriott will be of no assistance whatsoever because the hotel would rather you pay their extortionate internet rates than use Boingo. (By the way, I just left the Courtyard Berlin, which is a great hotel, but charges about 19.00 Euro DAILY for internet and there is not even free internet on a lobby or business center computer).