Read First for posting on the help forums
This particular thread is deleted and re-added to the forums so often I decided just to host it. Ending the searching once and for all.
Read First 
Always before posting in the Help Section, use the search function. The search 
function is located near the top left corner of the screen, and it is very 
likely that the problem you are coming here with has been discussed already. 
In the case that you cannot find a similar problem, here is some information 
that you should provide when posting for help. 
1) Network configuration, A B C D or E? Setups at:
www.xbconnect.com/xbchelp/network
2) Is your xbox status "found" in options general options? Is a MAC address 
listed? 
3) What version of XBConnect are you running? 
4) What operating system are you on? (What version of windows) 
5) Who is your Internet Service Provider? Comcast, SBC, Optimum, etc. 
6) If you use a router, what brand and model is it? Have you configured your 
router? (Forwarded port 8602). Router configuration tutorials can be found at:
www.xbconnect.com/xbchelp/router
7) Are there any software firewalls installed? Commonly used ones listed at:
www.xbconnect.com/xbchelp/firewall . If you are using windows XP, have you disabled 
the built in firewall? 
8) Do you have any antivirus software installed? Commonly used programs include: 
Norton, Panda, McAfee. 
9) Processor speed? Example: 1.2GhZ - 3.4GhZ 
10) Memory? Example: 128MB - 1024MB(1GB) 
11) Post any extra information that you feel will help explain the problem. This 
is the "general description" for the problem. 
12) What have you tried already? Did anything change when you tried this?