title: Android 4.2.2 USB debugging "Always allow from this computer" option result in target unknown for device?
body: <p>I am having problem connecting my 4.2.2 android device with PC after I select "Always allow from this computer".</p>
  
  <p>I have selected "Always allow from this computer" in 4.2.2 USB debugging and it works fine the first time but when I tried other time my devices always appear offline. I have tried with another device that is also 4.2.2 and the USB debugging popup and when I click ok (without selecting "Always allow from this computer") with device list became online.</p>
  
  <p>I have tried the following method and it didn't work</p>
  
  <ul>
  <li>adb kill-server/ adb start-server/ and adb devices</li>
  <li>install new eclipse, android SDK, and ADT</li>
  <li>Plug and unplug my device thousand times</li>
  <li>try repeating steps from <a href="https://stackoverflow.com/questions/15031411/after-upgrade-android-on-nexus-to-4-2-2-eclipse-shows-target-unknown-for-device">this link</a></li>
  </ul>
  
  <p><strong>Are there anyway to get rid of "Always allow from this computer" once I selected?</strong></p>