I'm having problems with my 3g! Every few days my 3g up arrow will stay lit like it's uploading something, While this is going on I have no data connection. The only way to fix this is toggling airplane mode on/off.
I have the new HTC One and thought it is a defective unit but after hearing this...NV might be the culprit! I live in the LA market where towers are being upgraded everywhere around me.
Btw I start receiving Lte 3 weeks ago.