Close the Unifi controller application.For illustration, we will discuss the process for a Windows PC. In this case, killing all the Unifi related processes and relaunching the software may solve the problem.

The issue you are encountering could be caused by a temporary software/communication glitch. Solution 1: Close the Unifi-Related Processes Through the Task Manager This error is reported by Windows, Linux, Mac, and Raspberry Pi users.īefore proceeding with the troubleshooting process, make sure your network type is either Private or Domain. Some of the affected got the error message after the application is launched for 5 minutes or more. In some cases, the affected user encountered the error when he upgraded Unifi controller software. The affected user gets the error when he tries to launch the Unifi controller software. Moreover, corrupt or outdated installation of Java or the Unifi controller software may also cause the error under discussion. The Unifi controller software may throw startup failed message due to the lack of free space on your system drive.

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