Hi there and welcome
can you please connect it to a different USB port and tell me if it then works on that please?
Disconnect the Note 2
Can you go to settings, Applications, then swipe to the list all (or if you see more, press it and press show system apps).
Then locate Google Services Framework, press it and press Clear Data
Then restart the Note and tell me if it then connects correctly please.
I did not mention anything about charging me..... I gave you a second set of instructions to do...
Can you do these please?