Unable to resolve host insert URL here No address associated with hostname

Question

I tried following this tutorial  Getting Data from the Web  I tried implementing it on Android 3 0  the latest platform for tablets  however  I get this error   Unable to resolve host  www anddev org  No address associated with hostname    You can checkout the URL that I used just to prove that the file exists  http   www anddev org images tut basic getdatafromtheweb loadme txt  I created a private class and extended it with asynctask  Here is the code       private class Downloader extends AsyncTask lt String Void String gt       String myString   null       Override     protected String doInBackground String    arg0            try              URL myURL   new URL  http   www anddev org images tut basic getdatafromtheweb loadme txt                URLConnection ucon   myURL openConnection                InputStream is   ucon getInputStream                BufferedInputStream bis   new BufferedInputStream is                ByteArrayBuffer baf   new ByteArrayBuffer 50               int current   0              while  current bis read     -1                   baf append  byte current                             myString   new String  baf toByteArray              catch Exception e               myString   e getMessage                      return myString         Override protected void onPostExecute String result       tv setText result         Any help out there would be appreciated

User · Answer

If you see this intermittently on wifi or LAN, but your mobile internet connection seems ok, it is most likely your ISP's cheap gateway router is experiencing high traffic load.

You should trap these errors and display a reminder to the user to close any other apps using the network.

Test by running a couple of HD youtube videos on your desktop to reproduce, or just go to a busy Starbucks.

User · Answer

May you have taken permission  lt uses-permission android name  quot android permission INTERNET quot    gt   lt uses-permission android name  quot android permission ACCESS NETWORK STATE quot    gt   BUT You may have forgot to TURN ON Internet in Mobile or Whatever Device

User · Answer

Please  check if you have valid internet connection

User · Answer

Restarting the emulator works in some scenario

User · Answer

My bet is that you forgot to give your app the permission to use the internet  Try adding this to your android manifest    lt uses-permission android name  android permission INTERNET    gt   lt uses-permission android name  android permission ACCESS NETWORK STATE    gt

User · Answer

Are you able to reach that url from within the built-in browser   If not  it means that your network setup is not correct  If you are in the emulator  you may have a look at the networking section of the docs   If you are on OS X  the emulator is using  the first  interface  en0 even if you are on wireless  en1   as en0 without a cable is still marked as up  You can issue ifconfig en0 down and restart the emulator  I think I have read about similar behavior on Windows   If you are on Wifi 3G  call your network provider for the correct DNS settings

User · Answer

This error because of you host cann t be translate to IP addresses via DNS      Solve of this problem     1- Make sure you connect to the internet  check quality of network    2- Make sure you take proper permission to access network   lt uses-permission android name  android permission INTERNET    gt   lt uses-permission android name  android permission ACCESS NETWORK STATE    gt

User · Answer

I had the same issue with the Android 10 emulator and I was able to solve the problem by following the steps below    Go to Settings   Network  amp  internet   Advanced   Private DNS Select Private DNS provider hostname Enter  dns google Click Save   With this setup  you URL should work as expected

User · Answer

I got the same error and for the issue was that I was on VPN and I didn t realize that  After disconnecting the VPN and reconnecting the wifi resolved it

User · Answer

Also  make sure that your device isn t on airplane mode and or that data usage is enabled

User · Answer

if you have USB internet like me the emulator seems to dislike connection being turned on and off so you may need to restart the emulator

[android] Unable to resolve host "<insert URL here>" No address associated with hostname

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