Xbox live and leopalace

Hi, sorry if this has been posted already, but I searched in r/Japan and didn't find anything. I live in leopalace and I'm trying to get on Xbox live. Ps3 works fine but I can't get the xbox live to connect. Has anyone had any luck connecting through leopalace? Thanks

I ended up getting a router and it works very well. It only cost 2900 from Bic Camera. I heard some people went and bought the wirless adapter for their xbox's but I just connected it with a 5 dollar lan cable and it works fine.