The Observer XT - Tobii Pro: 11 Firewall Settings
Last updated: Jul 25, 2026
Firewall settings 11 Firewall settings
Aim
When N-Linx Agent is installed, it enables the necessary communication ports. Follow this section in case communication is for some reason blocked by Windows Firewall.
Prerequisites
The Tobii Pro software and The Observer XT run on different computers, or N-Linx Server runs on a third computer other than The Observer XT computer and the computer with Tobii Pro software. If that is not the case, skip this section. The computers must be in the same network.
Procedure
important Do the following in all computers: the computer with Tobii
Pro Studio software, the Observer XT computer, and the computer where N-Linx Server is installed (if this is different from the computers where The Observer XT and the Tobii Pro software are installed). 1. Open the Windows Control Panel and choose Windows Firewall. 2. On the left side of the window, click Advanced Settings. 3. In the pane on the left, click Inbound Rules and then in the Actions pane on the right click New Rule. 4. In the window that opens, select Port and click Next. 5. Select TCP and Specific local ports. Next to that option enter 5672, then click Next. 6. Select Allow the connection and click Next. 7. Select to which network the rule applies and click Next. Firewall settings 8. Give the rule a name, for example N-Linx connection and click Finish. 9. Check in the Inbound Rules list that this rule is set to Enabled.
10.Click Outbound Rules and click New Rule in the Actions pane. Repeat
steps 4 to 9 for the outbound rule. 11. Close all Control panel windows.
Check Connection In N-linx Agent
- At the bottom-right corner of the screen of the computer with Tobii Pro software, click the arrow icon and in the system tray double- click the N-Linx Agent icon.
- Next to N-Linx Server Address make sure that the IP address of the Observer XT computer is specified. This IP address must be fixed.
note If The Observer XT and N-Linx Server are installed on the
same computer, enter localhost.
tip You can also enter the Computer name of the computer where
N-Linx Server is installed, instead of its IP address. On the computer where N-Linx Server is installed, open the Control Panel and choose System. Locate Computer name (not Full Computer name). 3. Click Connect. If connection is established, the message at the bottom of the N-Linx Agent window says Connected. 4. Click the Close button to close the N-Linx Agent window.
Source: The Observer XT 17 - Technical Note - Tobii Pro Eye trackers