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Please contact your IT administrator to configure your firewall to recognize all sub-domains of .box.net and .boxcdn.net. The ports that should be opened for these domains are 80 and 443.

If that does not resolve the issue, then please submit a support ticket at http://www.box.net/help.
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Help › Facebook 'Files' Application

As of this time, we are not offering support for the Facebook application, 'Files.' We apologize for any inconvenience this may cause you.

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