blocked port

I am using Bit Comet 1.15 and was downloading just fine till today when the port button in the bottom right corner went yellow. I followed all the instructions in and made sure that everything was right but it has not changed. My download speed dropped to under 1kb right at the end of a file. I have tried other downloads with no luck. Hate to say it but right now uTorrent is faster than BitComet for me HELP PLEASE

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