Hortonworks Sandbox Forum

Cannot open Sandbox or Tutorial port

  • #19974

    The Sandbox introduction page at is displayed okay. However, when I press the Start button under Use the Sandbox, I get the following error: is unavailable

    In Google Chrome the error message is:
    Error 138 (net::ERR_NETWORK_ACCESS_DENIED): Unable to access the network

    I get the same error when I press the Start button under tutorials which goes to the following address:

    In FireFox the error displayed is:
    Firefox can’t establish a connection to the server at

    I can ping the ip address

    Thank you for any help.

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  • Author
  • #20005

    Sorry about this second empty message. I wanted to check the Notify me of follow-up replies via email


    Hi Martin,
    What virtual machine are you using? If you have telnet, you can try telnetting to the port 8000 to verify the service is listening or you can log into the terminal and execute

    To verify the machine can fetch the webpage from itself. This should help isolate if the issue is the sandbox server versus your client browser.



    I cannot ping nor open in a browser. But it installed ok. I get the ip.


    Hi Ramana,
    You may want to start a new thread since you may have a different issue. Please provide the virtual application you are using. Can you check your network adapters and verify what their settings are?



    Resolved. Thanks Robert. read some of the earlier postings. I was using the incorrect IP. got the correct one from output of ifconfig.

    Richard Clapp

    In my case, the AMBARI site works fine, but the tutorial is flawed. Left side loads, right side ( does not. wget fails with unable to connect. Standard unaltered sandbox install on hyper-v. Any ideas where to start? I already grepped hue and it is active.

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