If you are able to get a list of genres and a list of channels, after you have done a 'clear cache', that means that your login/password and MAC are accepted as valid by the server. However if you only open the numbered channels (like adults or Music, or Sports,or the countries), but time out on the other channels (like the UK or US regular channels), it probably means there is an interruption in the routing, or maybe too many hops to the end server. One way to get around that is to use a VPN, which does shorten the path to the server. The other channels work as the server actually doesn't serve the stream for those channels, they are links to other hosts.