Teams Admin FAILED_TO_AUTO_DISCOVER_DOMAIN

PeterRising 

Yes i try, but i get this error in powershell command

import-module Skypeonlineconnector ok

$sfbsession = New-csonlinesession : mailto:teams@domain.com 

Get-CsOnlinePowerShellEndpoint : Remote server error: (404) Non Found.

In C:\Program Files\Common Files\Skype for Business

Online\Modules\Skypeonlineconnector\SkypeOnlineConnectorStartup.psm1:149 car:26

+ ... targetUri = Get-CsOnlinePowerShellEndpoint -TargetDomain $adminDomain ...

+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    + CategoryInfo          : NotSpecified: (:) [Get-CsOnlinePowerShellEndpoint], WebException

    + FullyQualifiedErrorId : System.Net.WebException,Microsoft.Rtc.Management.OnlineConnector.GetPowerShellEndpointCm

   dlet