When this happens, users will see the below message: This is important as many devices rely on extensions to function properly, and in some circumstances it can look like the software to power a device was installed but the device still doesn’t work. In macOS 10.13 High Sierra, when installing new software and extensions, Gatekeeper now requires users to manually approve any new third-party extension before the computer can load and make use of the extension that was installed. Keep reading for additional information and instructions.
Thankfully if you encounter this, there’s a simple process to fix. Essentially this issue can affect any extensions not developed by Apple.
For Plugable, the issue will only impact our products which don’t have drivers already built-in to macOS, such as our USB Docking Stations, USB Graphics Adapters, and USB Ethernet Adapters. To go with that, we wanted to take a moment to discuss the Gatekeeper security feature introduced back in OS X 10.7 which has gone through some changes in High Sierra that may affect installation of some 3rd party device drivers used in devices from Plugable and other device manufacturers. In our recent post titled macOS 10.13 High Sierra Significantly Improves DisplayLink Performance & Stability we talked about how the latest update to macOS improved behavior when using a DisplayLink product (such as the Plugable UD-ULTCDL docking station).