Can't install CredentialManager module in Powershell 5 - windows

Question

I'm on a Windows Server 2019 can I can't install the CredentialManager with PowerShell.
PS C:\> Install-Module CredentialManager
I get the following error:
PackageManagement\Install-Package : No match was found for the specified search criteria and module name 'CredentialManager'. Try Get-PSRepository to see all available registered module
repositories.
At C:\Program Files\WindowsPowerShell\Modules\PowerShellGet\1.0.0.1\PSModule.psm1:1809 char:21
+ ... $null = PackageManagement\Install-Package #PSBoundParameters
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (Microsoft.Power....InstallPackage:InstallPackage) [Install-Package], Exception
+ FullyQualifiedErrorId : NoMatchFoundForCriteria,Microsoft.PowerShell.PackageManagement.Cmdlets.InstallPackage
I used the same command on Windows 2012 with PowerShell v5 and it works. Ideas?

Answer 1

I was behind a corporate firewall that was preventing this. Once I set up the the proxy, I was able to install PSGallery.
$proxyhost = "your-proxy-url.com"
$proxyport = "1234"
$proxy = "$proxyhost" + ":" + $proxyport
$proxyurl = "http://" + "$proxy"
$proxyuser = "proxy-user"
$proxypwd = "proxy-pwd
# set up proxy credentials
$secPasswd = ConvertTo-SecureString $proxypwd -AsPlainText -Force
$credential = New-Object PSCredential($proxyuser, $secPasswd)
# Set up proxy with netsh
netsh winhttp set proxy proxy-server=$proxy bypass-list=$bypassList
# Recovering the PsGallery Repository behind a Corporate Proxy
[system.net.webrequest]::defaultwebproxy = new-object system.net.webproxy($proxyurl)
[system.net.webrequest]::defaultwebproxy.credentials = $credential
[system.net.webrequest]::defaultwebproxy.BypassProxyOnLocal = $true
if(!(Get-PSRepository "PSGallery")) {
Register-PSRepository -Name "PSGallery" –SourceLocation "https://www.powershellgallery.com/api/v2/" -InstallationPolicy Trusted
}