uClient on LG WebOS Troubleshooting
Updating uClient to the latest version is easy to do from the Displays section of the Control Center. The images given below show how to update the device(s).
Updating each device individually
Updating each device in bulk
Displays will disappear briefly, then re-connect with the Userful server.
This process works both with Cloud and On-Premise servers. If your devices are not updating, check to ensure the necessary ports are opened to the Internet for the download to take place.