No Sprint network

[squintter]

Here's my problem. I needed to get an ota from sprint. CS had me change my network to Sprint only (home only). When I did this I get no connection to a sprint tower even though I can see the sprint tower from my window.
I have tried unlocked, relocked, with omj, msr, juicy, caulkin and now with stock rom. I'm using stock shipped radio. Any help would be greatly appreciated.