[leetsauce]

Yes it is a provisioning thing.

I fixed it, actually. I feel like such an idiot for not having done this earlier because I actually thought of it the night I got my TP. Instead of wasting time at the Sprint Store and over the phone...

I booted up my old Mogul, went into the ##DATA# menu, and copied over the values to my TP. Some of the values that were in there (Shared Keys) were given to me by the techs over the phone, but the ones they left out (SPI) were apparently just as crucial because once I copied them over, Internet instantly worked.

If you have an older WM phone, try copying over the values in ##DATA# and see if it works for you. It sure worked for me...