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Is it safe to disable upnp or can it harm devices on the network? Are there any other problems disabling the UPnP might bring

The reason I'm turning it of is so I can play battlefield 3

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There should be no problem if you have no devices that rely on UPnP on your network.

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What kind of devices would that be? – Jkguitar Mar 18 '12 at 14:51
You will have to check all the devices that connect to your network, and see if any of those use UPnP. I presently do not have anything that uses UPnP, so I can't help much in that aspect. – Renan Mar 18 '12 at 14:58

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