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Information Resources and Technology


Issue with accessing MyCloud on Mac - SSL Handshake Error

Instructions for fixing the "The remote SSL peer sent a handshake failure alert" for MyCloud access on Mac OS.
Information Audience 
All campus community members


When trying to open the CSUS Lab Desktop in MyCloud, some Mac users get an error message about an SSL handshake failure alert. Closing the error message, restarting, or re-installing the Citrix Receiver application does not resolve this issue.


  • This error is caused by an incompatibility between Citrix Receiver 12.0 and mac OS versions 10.10 - 10.10.5, also known as Yosemite.


To resolve this issue, you can install a different version of Citrix Receiver. Version number 11.9.15 works for Yosemite and version number 12.3 works for Sierra.

  • Note: It is not a requirement that you have the most current version of Citrix Receiver to be able to access MyCloud.
  1. To check which version of Mac you have:
    • Click the Apple icon in the top left corner.
    • Click the option "About this Mac."
    • A window should appear with your version of Mac OS X
  2. Uninstall any Citrix Receiver 12.0.
  3. Yosemite: Download the previous version at Citrix Receiver 11.9.15 for Mac.
  4. Install the previous version.
  5. After the install has completed, try accessing the CSUS Lab Desktop again.

The current version of the Citrix Receiver (12.7) is only compatible with the following Mac OS versions:

  • 10.10
  • 10.11
  • 10.12
  • 10.13

Computers & Software - KB0012309 by Nathan Osborn | Published:2017-03-29 | Updated:2017-10-23 11:35:54 | Views::321

Version 1.4.2 (release notes)