It is a question we get asked often by prospective buyers of Wi-Fi boosting equipment such as the Alfa R36 router.
What can I do if the hotel blocks me from sharing the Wi-Fi signal with other devices? Marriott had recently been fined in Tennessee for doing this, but still felt they were within their legal rights for doing so.
Recently they sought out clarification from the FCC, and received a clear response. This blocking practice is simply not allowed. You are well within your rights to use Wi-Fi boosters and repeaters to help extend a weak hotel Wi-Fi signal in your hotel room. If you are told otherwise, you can file a complaint with the FCC.
Read more here.