[Q] adb returning "error: closed"

Hi,

I'm currently trying to use adb to push some data into my phone but i always get "error: closed". I'm using windows 7 x64 and im running it from cmd.

Almost everything i tried using adb (push, shell, remount) returns this. I've searched over the forums and tried "adb devices" as well to see if my phone is connected, but what is different from the others is i am getting

List of devices attached
XXXXXX host

instead of what most other people got
List of devices attached
XXXXXX...

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