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I am using Graphite behind our corporate firewall at work and frequently get the broken network connection icon in the upper left that when I click on it I see the message "Connection Interrupted. Your last operation to the server - [POST]... ...was not successful. Please check your network and try again in a minute to prevent any data loss." I actually have had some data loss after this messasge. I'm fairly certain this has to be firewall settings because I can run Graphite just fine at home. My IT guys have told me they have whitelisted *.icenium.com, but I still have the same problem. Any ideas/suggestions?