Invoke-WebRequest TLS connection issues

Since updating to v4+ we have had intermittent TLS issues with Invoke-WebRequest calling external API’s. After recycling the App Pool everything works for a while. Once it breaks (not sure the cause) it breaks anything using Invoke-WebRequest and HTTPS API calls.

While Universal is having issues with TLS we can run API calls on the server itself without any issues under the same profile and user as the dashboard is running.

Prior to v4+ we have not had these issues. Any assistance would be appreciated.

Product: PowerShell Universal
Version: 4.2.13