I was trying to run topcoder arena applet using proxy. I install latest JDK and iced-tea. When I try to run using:

javaws ContestAppletProd.jnlp

I'm getting:

File cannot be launched because offline-allowed tag not specified and system currently offline.

I tried setting proxy in icedtea applet but still getting the same error.

  • I am getting the same error as you, please say if u did find a solution.
    – shivshnkr
    Sep 11, 2013 at 13:50

1 Answer 1


Configure proxy settings in icedtea control panel. Search for icedtea in dash to get the control panel, then set the proxy settings in network category on left.

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