How to Manually Connect to Your Arma 3 Server

In order to connect to your private Arma 3 server manually, you can join via the launcher or in game through the server browser.

Joining Through the Launcher

Once you've started your game, the Arma 3 launcher will open first.

Arma 3 Server Join

Select Servers in the launcher.
Select Direct Connect at the bottom of the servers list.
Enter your server IP/hostname, and password. The port defaults to 2302 and does not need to be changed.

Joining Through the Server Browser

If you have already loaded the game by clicking Play in the launcher, or have disconnected from your server in some way, you can rejoin your server through the Server Browser.

Arma 3's Main Menu highlighting the Server Browser

On the Main Menu under Multiplayer select Server Browser .
Select Direct Connect and enter your server IP/hostname, and password. The port defaults to 2302 and does not need to be changed.
Select your server in the list under the LAN tab and click Join .