I've tried everything I can think of... Ok, here's the story: Having suffered slow internet for 2 months running, I fugured someone was accessing my account and using up all my internet usage which slows my internet to 56k. So as of today, the 1st of the month when it went back to full speed, I changed the password on my internet account and instaled ZoneAlarm firewall (free basic version). Since then, though I have internet on my computer, I can't get access on my sister's computer which is networked to mine and was happily sharing the internet connection until today. Now I'm not sure if it's ZoneAlarm or the password change that has caused the problem but here are the things I've tried so far: In ZA, I moved my sister's computer's IP into the trusted zone. I ran 'set up network' again on both computers. I tried setting up an internet connection on my sister's computer with the new password. I tried turning the firewall off completely and I still couldn't connect on her computer. Any help or further suggestions would be much appreciated. I am running XP on both computers. My internet is conected via cable modem.