My Thunderbolt is rooted and LTE is live throughout campus down the road from me at Notre Dame. I get 4G speeds on my Thunderbolt just fine, all the way up to 40mbps down and 15mbps up.....But when I tether to my laptop, I get 2-3mbps down and 1mbps up AT BEST! I have tried every free tethering app out there, both wireless and wired.....no dice. What am I doing wrong? Is there some sort of trick to doing it?