thanks but according to that thread I have to take my laptop ("simply create a Wi-Fi hotspot from your laptop and connect the Chromecast through your laptop instead.The simplest way to do this is using an application called Connectify Hotspot that lets you create a Wi-Fi hotspot from your laptop even if you are using your Wi-Fi to connect to the hotel’s internet connection. . ." - but the reason I'm going through this is because sometimes I don't want to take the laptop, just my tablet - can my tablet, which is the device I'll use to control the chromecast, capable of creating the wifi hotspot as described above, or do I have to have the 3rd device, the laptop, to make this work - because that just defeats the purpose. Honestly, I never imagined it would be this complicated.
I guess in addition I should ask, is there any way to hook my tablet up to a tv and see and hear it there (what would be "mirroring" in chromecast) the way I can with my laptop, with a wire of some kind? I guess not, that's why you need the chromecast - more complicated than I thought it be!