i use BB 8320 with T-mobile and data plan. i was able to setup Wi-fi connection .My Wi-Fi connection shows connected successful but i see on my phone the connection keep show "EDGE" ,should it be UMA? I had UMA before but it seems to stick with EDGE forever after changing from T-zone plan to data plan (BB unlimted added on).
i do have Wi-fi priority setting to automaticand i have turned on/off my phone to make sure the phone is reset.

Go to Manage Connections and select "Wifi Options." Then hit the menu key and select "Wifi Diagnostics." Scroll down to UMA and see if there are any error codes shown.

i did battery pull and it when i turned it back on, it connect to UMA when i go to browser.However, i did notice there wasn't any error code.

When you go to manage connections, uncheck Mobile Network and only check Wi-Fi. This will ensure you're only using UMA. Then do a wifi scan from "Set Up Wifi Network" and see if it finds your network. If it does and connects, give it a minute or so to get on UMA. If it doesn't get on UMA, and you're network shows SOS or OFF (because the mobile network is turned off), get on a computer and make sure you have internet connectivity. I'm assuming your internet is up and running since you were able to post your question (but double check). Is your computer hard wired to your router via ethernet or are you on wireless? If your computer is via ethernet, something could be going on with the wireless component of your router.

So, it's working now? If it says UMA there will be no error code.