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I am trying to connect to my tablet (Samsung Galaxy Tab P3100) through network.

 > adb connect
 unable to connect to

 > adb connect
 unable to connect to

 > adb connect
 unable to connect to

Ping works successfully. I also checked "USB debugging" option in "Developers options" on tablet.

Connection throught USB ("adb usb") works fine.

Is there any suggestions?

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you have to tell adb to use tcpip

adb tcpip 5555
adb connect

then to go back to usb mode

adb usb
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You can download this app (adbWireless) and connect to it via wireless, using the wifi without the cable you can connect directly via a address as shown by the widget/app.

Usually its the following:

adb connect 192.168.1.x:5555
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