You might have to log in via your laptop, find out your mac address, and then set your ooma to the mac address of your laptop.
Google "hotel mac address" for some ideas.
If you can connect to your laptop to WiFI okay in the hotel, and can't connect your Ooma device any other way, you might give the following procedure a try. (It's a procedure that I tested some time ago)
Ooma Connected to a WiFi Network Through a Computer
Since I hadn’t actually connected an Ooma Telo to a WiFi network, I tested this morning using my home’s WiFi network and a computer. First since I use a static IP address in my Ooma Telo’s network settings, I went into the Ooma Setup than selected Network, than after Network Setup: I de-selected “Static IP Address” and selected “Automatic”. Than I selected “Update” at the bottom of the page. After configuring my Ooma Telo, I ran a network cable from my computer’s wired LAN adapter port, to the Ooma Telo Internet port. After right clicking on the My Network Places icon and selecting properties, I right clicked on the Wireless Connection icon and selected properties. I than selected the Advanced tab at the top of the Wireless Network Connection Properties window. Under “Internet Connection Sharing”, I placed a check mark in the box located in front of “Allow other network users to connect through this computer’s Internet connection” and selected Okay at the bottom of the window. I restarted my computer, after which I did a cold boot of the Ooma Telo. I tested the setup using my cell phone. Everything worked fine the first time. I have Microsoft Windows XP installed on the computer I used. Other Microsoft Windows operating systems setups are similar.