The Apple phone connected to the computer has been thump thump pedal, and no response

The company's 4S connection my own computer is no problem, but connected to the company's computer has been thump thump pedal, and not connected. The most important thing is that 6P was able to connect last week, this week is not connected, and 6P does not prompt whether to trust the box.

Later I found that my computer's itunes and mobile phone's appleid is not an account, then the computer's itunes account is unregistered, connected.

Personal guess, the best mobile phones and computers are installed itunes, if you trust the frame has a problem, the computer will not log on, or use the same account to log on. Now just guess, haven't verified, O (∩_∩) o haha ~

The Apple phone connected to the computer has been thump thump pedal, and no response