The PowerShell Gallery is currently: Experiencing a continued outage as of 10/30 at 18:15 UTC
__Status: Under investigation

Summary of Impact: PowerShellGallery.com is experiencing an outage. Users will be unable to access the gallery or download packages.

Root Cause: Under investigation

https://github.com/PowerShell/PowerShellGallery/blob/master/psgallery_status.md#powershell-gallery-status

See also: PowerShell/PowerShellGallery#135