Can't install Exchange Online PowerShell V2 module-CodePudding

I'm trying to enable modern authentication for an O365 tenant, and then instructions say to import the Exchange Online Management module. I don't have that module, so those same instructions say to install it by using

Install-Module -Name ExchangeOnlineManagement -RequiredVersion 2.0.5

But then I get this error

WARNING: Unable to resolve package source 'https://www.powershellgallery.com/api/v2'.
PackageManagement\Install-Package : No match was found for the specified search criteria and module name
'ExchangeOnlineManagement'. Try Get-PSRepository to see all available registered module repositories.
At C:\Program Files\WindowsPowerShell\Modules\PowerShellGet\1.0.0.1\PSModule.psm1:1772 char:21
  ...          $null = PackageManagement\Install-Package @PSBoundParameters
                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      CategoryInfo          : ObjectNotFound: (Microsoft.Power....InstallPackage:InstallPackage) [Install-Package], E
   ception
      FullyQualifiedErrorId : NoMatchFoundForCriteria,Microsoft.PowerShell.PackageManagement.Cmdlets.InstallPackage

Just in case I did also run this to check

Get-PSRepository

And the result was

Name                      InstallationPolicy   SourceLocation
----                      ------------------   --------------
PSGallery                 Untrusted            https://www.powershellgallery.com/api/v2

And that seems correct. So does anybody know why it's not working.

Thanks!

CodePudding user response：

Just replying with the answer in case it helps anyone else who stumbles across this in future. It was a TLS issue, and the fix was simply:

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

After that everything worked as it should.