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chad-at-danaher's avatar
chad-at-danaher
Copper Contributor
Jul 12, 2023

Error connecting to ExchangeOnline with PowerShell 7 - "Error Acquiring Token:...."

I can connect to EXO with PowerShell 5.1 fine. I just installed PS 7.3.5. When I run Connect-ExchangeOnline I get the following error:   PS C:\> Connect-ExchangeOnline Error Acquiring Token: Syst...
exchange online
kevkelly's avatar
kevkelly
MCT
Jul 12, 2023

chad-at-danaher 

 

What version of the Exchange Online Management module do you have installed?  You can check the version by running the following:

Import-Module ExchangeOnlineManagement
Get-Module ExchangeOnlineManagement
    • kevkelly's avatar
      kevkelly
      MCT
      Jul 14, 2023

      chad-at-danaher 

       

      PowerShell 7.3.5 should be supported in version 3.2.0 of the ExchangeOnlineManagement module as stated in the Exchange Online PowerShell module

       

      Check the security protocol that is in use:

       

      [Net.ServicePointManager]::SecurityProtocol

       

      And as Alexterneuzen stated, use the following to set to Tls1.2:

       

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

       

       

    • Alexterneuzen's avatar
      Alexterneuzen
      Copper Contributor
      Jul 13, 2023
      Make sure that tls1.2 is enabled

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

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