title: Unable to connect to android devices via ADB
body: <p>I want to control my android phones and tablet using <code>adb</code> command, but I only could connect to one of them and the two others failed:</p>
  
  <p>Here is what I have tasted from the <a href="https://stackoverflow.com/questions/34327974/could-not-connect-to-tcp5037-cannot-connect-to-127-0-0-15037-no-connection-c/41321064">previous</a> solution to this topic:  </p>
  
  <pre><code>D:\Android\sdk\platform-tools&gt;ping 10.42.0.16
  
  Pinging 10.42.0.16 with 32 bytes of data:
  Reply from 10.42.0.16: bytes=32 time=326ms TTL=64
  Reply from 10.42.0.16: bytes=32 time=291ms TTL=64
  Reply from 10.42.0.16: bytes=32 time=158ms TTL=64
  Reply from 10.42.0.16: bytes=32 time=18ms TTL=64
  
  Ping statistics for 10.42.0.16:
      Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
  Approximate round trip times in milli-seconds:
      Minimum = 18ms, Maximum = 326ms, Average = 198ms
  
  D:\Android\sdk\platform-tools&gt;adb kill-server
  * server not running *
  
  D:\Android\sdk\platform-tools&gt;adb usb
  * daemon not running. starting it now at tcp:5037 *
  * daemon started successfully *
  error: no devices/emulators found
  
  D:\Android\sdk\platform-tools&gt;adb connect 10.42.0.16:5555
  unable to connect to 10.42.0.16:5555: cannot connect to 10.42.0.16:5555 : No conn
  ection could be made because the target machine actively refused it. (10061)
  </code></pre>
  
  <p>The successful connection android device information:</p>
  
  <p>Galaxy S7, Android 6.0.1</p>
  
  <p>Two Failed devices information:</p>
  
  <p>Huawei G525-U00, Android 4.1.2</p>
  
  <p>Galaxy Note 10, Android 4.4.2</p>
  
  <p>How can I solve this issue? </p>