And if you also have another installed firewall make sure you whitelist Streamlabs Desktop for both 'public' and 'private' network. If you do not have any other firewall installed then you can follow this article to open the Windows Firewall.
Open FirewallIt is important to open your firewall for Streamlabs Desktop to properly connect to the internet and allow the various used widgets, like Alert Box, to get updated promptly. If you did update any drivers or software, make sure that you have rebooted your computer before continuing. Updated Drivers and SoftwareMake sure that your drivers, especially your video graphic card drivers, and Windows are fully up to date. Please download and run both of these Microsoft Visual C++ 2017 redistributables and reboot your computer afterward.
Install VC++ 2017Streamlabs Desktop requires some additional files to be installed on your system before using the software else it might run into issues.