Exchange online PS error

Question

Hi guys,

I'm fairly new to powershell and not sure what this error might be associated to.

After running Connect-ExchangeOnline -Credential $UserCredential -ShowProgress $true command line its returning the error:

PS C:\windows\system32> Connect-ExchangeOnline -Credential $UserCredential -ShowProgress $true

New-ExoPSSession : One or more errors occurred.
At C:\Program Files\WindowsPowerShell\Modules\ExchangeOnlineManagement\2.0.5\netFramework\ExchangeOnlineManagement.psm1:475 char:30

• ... PSSession = New-ExoPSSession -ExchangeEnvironmentName $ExchangeEnviro ...
• ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
• CategoryInfo : NotSpecified: (:) [New-ExoPSSession], AggregateException
• FullyQualifiedErrorId : System.AggregateException,Microsoft.Exchange.Management.ExoPowershellSnapin.NewExoPSSession

Answer 1

@Joseph

Try to connect to Exchange online with command below:

Connect-ExchangeOnline -UserPrincipalName admin@domain.onmicrosoft.com  

If there exist issue with it, I would suggest you use command below to uninstall Exchange online module and reinstall it (Run those command in an elevated PowerShell window):

Uninstall-Module -Name ExchangeOnlineManagement  
Install-Module -Name ExchangeOnlineManagement  

For EXO V2 module 2.0.5, you also need to check those setting below:

ExecutionPolicy set as "RemoteSigned" : Set-ExecutionPolicy RemoteSigned

Basic is enabled on client: winrm get winrm/config/client/auth

For more detailed information about it, you could have a look about this article.

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Answer 2

This fixed it for me.

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

I was seeing this error. For some reason I have to run the command above every time I run powershell and it doesn't save between sessions.

PS C:\Windows\system32> Connect-ExchangeOnline -UserPrincipalName chris_taylor@craftsamericana0.onmicrosoft.com

----------------------------------------------------------------------------

The module allows access to all existing remote PowerShell (V1) cmdlets in addition to the 9 new, faster, and more reliable cmdlets.

|--------------------------------------------------------------------------|
| Old Cmdlets | New/Reliable/Faster Cmdlets |
|--------------------------------------------------------------------------|
| Get-CASMailbox | Get-EXOCASMailbox |
| Get-Mailbox | Get-EXOMailbox |
| Get-MailboxFolderPermission | Get-EXOMailboxFolderPermission |
| Get-MailboxFolderStatistics | Get-EXOMailboxFolderStatistics |
| Get-MailboxPermission | Get-EXOMailboxPermission |
| Get-MailboxStatistics | Get-EXOMailboxStatistics |
| Get-MobileDeviceStatistics | Get-EXOMobileDeviceStatistics |
| Get-Recipient | Get-EXORecipient |
| Get-RecipientPermission | Get-EXORecipientPermission |
|--------------------------------------------------------------------------|

To get additional information, run: Get-Help Connect-ExchangeOnline or check https://aka.ms/exops-docs

Send your product improvement suggestions and feedback to exocmdletpreview@abdou .microsoft.com. For issues related to the module, contact Microsoft support. Don't use the feedback alias for problems or support issues.

----------------------------------------------------------------------------

Error Acquiring Token:
System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. ---> System.ComponentModel.Win32Exception: The client and server cannot communicate, because they do not possess a common algorithm

Answer 3

Please try to use the cmdlet as follows:

Connect-IPPSSession -PSSessionOption  
$EXOSession = New-ExoPSSession -pssessionoption  
Import-PSSession $EXOSession -Prefix EXO