Wi-Fi

The Wi-Fi connection on your controller can be configured using the Linux service named Network Manager. Beside Wi-Fi connections, Network Manager is also used to configure other wired and/or wireless connections. You can use Network Manager via the serial terminal or the SSH terminal.

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Connect to a Wi-Fi Network

When you are connected to your controller using Wi-Fi, keep in mind that changing Wi-Fi setting will disconnect the SSH session and eventually lock you out. Be sure to have a backup over wired ethernet or USB before changing Wi-Fi settings.

Start with scanning for available Wi-Fi networks:

nmcli dev wifi 

Typical output:

To connect to a Wi-Fi network that is available to the controller, you can use the following command:

nmcli dev wifi connect "net name" password "password"

Lets assume we want to connect to the “GOcontroll_Guest” network. The command look like this:

nmcli dev wifi connect "GOcontroll_Guest" password "WelcomeGuest"

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Validate an active Wi-Fi connection

After successful connection to the network, your terminal should confirm your wlan connection is sucesfully activated. To verify if your connection is up and running, you can use command:

nmcli con

This command will list all active connections

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Delete existing Wi-Fi connection

If you want to delete an existing connection you can simply execute:

nmcli con delete "net name"

Lets assume we want to delete the GOcontroll_Guest network, we execute:

nmcli con delete "GOcontroll_Guest"

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Reset access point configuration

To switch back to the default access point configuration, GOcontroll prepared a script that restores the default settings of the access point. Naming is based on the serial number and the password is set to default: Moduline. The following command can be used:

go-reset-ap 

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Change access point password

nmcli connection modify "connection name" wifi-sec.psk "your new password"

Lets assume we want to change the password from our existing access point with SSID “GOcontroll-AP-B041” to “ModulineIV”, the following command can be used:

nmcli connection modify "GOcontroll-AP" wifi-sec.psk "ModulineIV"

Your new password is required during the next login after a reboot of the controller. When you want to change the password during runtime, the following commands can be used:

nmcli connection down "GOcontroll-AP"
nmcli connection up "GOcontroll-AP"