There have been recent changes to scanning for ARMA2, ARMA3, and DAYZMOD.

If your server is not scanning, you will likely need to update its query port. You may need to update its firewall too. You can update the query port by visiting your server page and clicking "claim server". On the following page, you will see a text area which lets you update the query port.

For ARMA2 and DAYZMOD servers:

Check your server configuration for "steamQueryPort" and use that port number. By default its 27016, or your connect port + 1.

For ARMA3 servers:

As of 06/30/2014, the ARMA3 query port is hardcoded to connect port + 1. If your connect port is 2302, then your query port would be 2303.

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Due to these changes, we are issuing a temporary hold from deleting servers of these gametypes from GameTracker. However, we encourage you to update your server in a timely manner to ensure that you do not lose stats.