This article applies to all operating systems.
Ports that you must forward to play or to host a multiplayer game on Voobly
Voobly is using a technology called NAT-Traversal, it allows you to play or to host a multiplayer game on Voobly by forwarding a single Port only, which is UDP 16000. Older installations of Voobly have used UDP 5000, this was however changed due to known problems with other services. You can change this port at any time, by clicking menu Options > Settings > NAT Traversal and entering the desired port. Please remember, that you have to restart Voobly after doing so.
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