This article is intended for Citrix administrators and technical teams only. Non-admin users must contact their company’s Help Desk/IT support team and can refer to CTX297149 for more information. Mac Receiver 12.7: Unable to launch application Error: 'Cannot connect to server' while connecting through Citrix Receiver. / Download / Citrix Receiver / Earlier Versions of Receiver for Mac / Receiver 12.7 for Mac.
With macOS 10.13 High Sierra, Apple has introduced a new feature, where user approval is required to load any newly-installed third-party kernel extensions (KEXTs). Citrix Receiver 12.7 for Mac requires Citrix kernel extension to be loaded for Generic USB Redirection to function properly.
If users see the “System Extension Blocked” prompt when launching a Citrix Receiver desktop or application, they can go directly to System Preferences > Security & Privacy and Click Allow against Citrix Systems Inc as shown below to allow loading of the Citrix kernel extension:
When using a DisplayLink docking station with v3.1 drivers and Receiver for Mac there is a high ICA RTT spike over 1000ms. Upgrading to DisplayLink v4.0 drivers and MacOS 10.13 High Sierra resolves the issue. The issue is still being investigated for earlier MacOS versions. Citrix Receiver for Mac 12.6 and 12.7. Click the Detect Receiver button in the prompt that appears after login. Check “I agree with the Citrix License Agreement” 4. Double-Click on the downloaded CitrixReceiverWeb.dmg file. (Depending on your browser settings, you may need to navigate to your download folder). Double-Click on the Install Citrix Receiver. / Nedlastinger / Citrix Receiver / Earlier Versions of Receiver for Mac / Receiver 12.7 for Mac. Receiver 12.7 for Mac Release Date: Sep 25, 2017.
Users can also go to the Devices tab in Citrix Receiver Preferences and follow the steps as shown below in the screenshot:
Citrix Receiver For Mac 12.7
In addition, users can also open preferences from the Devices tab on the Desktop toolbar or the USB Devices menu in the main Citrix Viewer menu as shown below:
Citrix Receiver for Mac users with Citrix Receiver already installed when upgrading to macOS High Sierra are automatically granted approval to the Citrix kernel extension that was already present.
Citrix Receiver For Mac 12.7
Citrix Receiver For Mac 12.77
Citrix Receiver for Mac does not require any explicit approvals to enable USB redirection when installed on previous versions of macOS (10.12, 10.11. and 10.10).
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