Slingshot applications are unable to install the Slingshot application for kicking off slingshot applications. Error is received "Unable to contact server."
Issue:
TLSv1 is disabled by default in the stoneware/config/excludeProtocols file. TLSv1 is required for the installer to talk back to the Lenovo Unified Workspace relay.
Solution:
1. Modify the /stoneware/config/excludeProtocols file on each relay so the file looks like the following:
#
# A list of protocols that will be disabled when SSL is configured.
2. Once modified you will need to shutdown the webNetwork Service from the 8090 Management Console on each relay and then start the webNetwork service again.
As of 6.4.4.x, Slingshot has been updated to remove the need for TLSV1. Therefore the above steps do not need to be followed after upgrading to 6.4.4.x.