Better yet, under the topic of 'Internet Connectivity' would be the correct spot.
That being said.... we need information to help!
What type of connection and OS you use. Whether you use a router, firewalls, etc.
Tracing your connection to HTC is also a good start with a utility called PingPlotter, from
http://www.pingplotter.com/ I believe, is a good thing also.
Go to:
http://www.hitechcreations.com/forums/showthread.php?s=&threadid=68316 and read this thread and try some of the suggestions there.
You really didn't supply us with any info to know where to start from.