Error with wallpaper on boot

[johnjelinek]

Exception calling "DownloadFile" with "2" argument(s): "The request was aborted: Could not
create SSL/TLS secure channel."
At C:\Users\IEUser\SetWallPaper.ps1:31 char:1
+ (New-Object System.Net.WebClient).DownloadFile($WallpaperRemoteFile,  ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : WebException