If you have just moved to ADSL from dialup or ISDN, that would mean that you have moved from using a dynamic IP to using a new static IP in a new IP range - which to me would imply that the problem is simply that this new IP block is not yet widely recognised, i.e. hasn't yet made it into the server I-lines.
If the problem was with your computer I think you would be getting different error messages - like "unable to connect", or being disconnected for having no identd. etc.
"Connection refused" means, iirc, that you have successfully contacted the server, but that it isn't interested in you.
PM
