Unfortunately, you haven't included any useful information in your post,
so you can't get a specific answer. Go here to get help in making a
good post:
Then do come back and repost with all necessary details. There are lots
of people reading this newsgroup who want to help you (like me), but
you have to give us something with which to work.
In the meantime, here is an excellent network troubleshooter by MVP
Hans-Georg Michna. Take the time to go through it and it will pinpoint
the problem area(s):
