Please try to post again...and please provide details. For instance, tell us exactly the steps you take to connect your BB to your WiFi and exactly the results of each step. If there are any error messages, then please provide the exact and complete content of those.
Thanks and let us know!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.