I've also had trouble connecting to Rib.net in hotels around the world, I visit Rotterdam a lot at the moment and cannot get straight in from there, also had problems in Denmark.
I've setup a page of links accessed via one of my domain names, that usualy gets me in anywhere, and also diverted one of my unused domain names direct to Rib.net. I've also found Ebay is not encouraged in some places such as the Ukraine.
Interestingly you can get at anything you want in the BA Business lounge at Heathrow.
RIBBED For extra pleasure.
Member of the ebay Blue RIB cover club.
Member of the Bombard 380 Aerotec club