Error: Could not create SSL/TLS secure channel

Solution:

On the affected computer, open the start menu, click on Run, type in: 'mmc' and press the OK button.

From the top menu, select File - Add/Remove Snap-in

In the Add or Remove Snap-ins dialog, click on 'Certificates', click on Add> and then select the Computer account -> Local computer-> Finish.

Download the root certificate from DigiCert here: https://cacerts.digicert.com/DigiCertGlobalRootG2.crt.

Expand the "Certificates" node and right click on the "Trusted Root Certification Authorities" node, select all tasks -> Import and select the certificate file you've previously downloaded.

Restart the "Pulseway" (service name "PC Monitor") service and the "Pulseway Manager" if opened and the connection should go through.

To validate the solution open the "Pulseway Manager" app and click on the "Validate Registration" button.