I have used Marriott.com through my cable ISP, office dial-up, and Marriott Hotels' HS internet without incident over the past few weeks. You may want to check with your ISP to see if they are encountering problems. It also could be an area issue if it is only on certain web sites where you encounter delays. In other words your ISP routes you through specific servers to get you to that destination and encounters issues along the way, whereas, other people like myself in Washington DC get routed through servers that are functioning properly. I assume you are running up to date anti-virus and firewall software and have the latest patches for Windows XP SP 2 installed. If not, you may have a virus and/or could be disadvantaged by older XP software that is not functioning properly. I hope some of this was helpful. Good luck.