From: Mathieu Baudier mbaudier@argeo.org
I'm currently travelling (in south-eastern Europe) with a netbook (Samsung NC 10) running CentOS 5.4 i386. I frequently try to access internet from bars or hotels (mostly via wireless). Although it works pretty often, it happens quite regularly that in some hotels I cannot access internet from CentOS while it is possible from Windows. This is the case in the hotel where I am currently and I'd like to dig this further.
While you cannot access websites, did you test with their IPs instead? Also try a traceroute.
JD