About a week ago, the wi-fi server at my local Barnes & Noble coffee shop stopped working -- but only for me. I look around and see others happily working on their laptops (and online, as far as I can tell). My Samsung Chromebook, however, can't open the necessary connection page; it tries forever, then times out. I ran a connection test, and it seems to be stumbling at the firewall stage. All my other favorite hot spots around town continue to play nice with the Chromebook. It's just this ONE place that refuses to let me online. How should I troubleshoot this? What all can I try? Thanks!