Forum Discussion
Vancelot
Feb 19, 2024Copper Contributor
EAC Issue After Exchange 2019 CU14 Install
We upgraded our Exchange 2019 server from CU13 to CU14 successfully. This is a hybrid setup and we only use this server as a SMTP relay to Office 365. There are no mailboxes on-prem.
Mail flow is working fine, but we can't log into EAC. Every time I enter my credentials it goes back to the logon prompt. I did the obvious and rebooted the server first and this made no difference.
Has anyone had this issue?
- VancelotCopper ContributorI finally got Microsoft support involved. They went through all the basic troubleshooting steps that did not fix it. What they finally did to resolve it was to disable Extended Protection for Windows Authentication on the ECP and Powershell backend applications in IIS.
- VancelotCopper ContributorAnd if I open the Exchange Management Shell, I get:
Welcome to the Exchange Management Shell!
Full list of cmdlets: Get-Command
Only Exchange cmdlets: Get-ExCommand
Cmdlets that match a specific string: Help *<string>*
Get general help: Help
Get help for a cmdlet: Help <cmdlet name> or <cmdlet name> -?
Exchange team blog: Get-ExBlog
Show full output for a command: <command> | Format-List
Show quick reference guide: QuickRef
VERBOSE: Connecting to exchange.domain.net.
New-PSSession : [exchange.domain.net] Connecting to remote server exchange.domain.net failed with the following error message : For more information, see the about_Remote_Troubleshooting Help topic.
At line:1 char:1
+ New-PSSession -ConnectionURI "$connectionUri" -ConfigurationName Micr ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotingTransportException
+ FullyQualifiedErrorId : -2144108477,PSSessionOpenFailed
VERBOSE: Connecting to exchange.domain.net.
New-PSSession : [exchange.domain.net] Connecting to remote server exchange.domain.net failed with the following error message : For more information, see the about_Remote_Troubleshooting Help topic.
At line:1 char:1
+ New-PSSession -ConnectionURI "$connectionUri" -ConfigurationName Micr ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotingTransportException
+ FullyQualifiedErrorId : -2144108477,PSSessionOpenFailed
VERBOSE: Connecting to exchange.domain.net.
New-PSSession : [exchange.domain.net] Connecting to remote server exchange.domain.net failed with the following error message : For more information, see the about_Remote_Troubleshooting Help topic.
At line:1 char:1
+ New-PSSession -ConnectionURI "$connectionUri" -ConfigurationName Micr ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotingTransportException
+ FullyQualifiedErrorId : -2144108477,PSSessionOpenFailed
WARNING: No Exchange servers are available in the Active Directory site site2. Connecting to an Exchange server in another Active Directory site.
WARNING: No Exchange servers are available in the Active Directory site site2. Connecting to an Exchange server in another Active Directory site.
WARNING: No Exchange servers are available in the Active Directory site site3. Connecting to an Exchange server in another Active Directory site.
WARNING: No Exchange servers are available in the Active Directory site site4. Connecting to an Exchange server in another Active Directory site.
VERBOSE: Connecting to exchange.domain.net.
New-PSSession : [exchange.domain.net] Connecting to remote server exchange.domain.net failed with the following error message : For more information, see the about_Remote_Troubleshooting Help topic.
At line:1 char:1
+ New-PSSession -ConnectionURI "$connectionUri" -ConfigurationName Micr ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotingTransportException
+ FullyQualifiedErrorId : -2144108477,PSSessionOpenFailed
VERBOSE: Connecting to exchange.domain.net.
New-PSSession : [exchange.domain.net] Connecting to remote server exchange.domain.net failed with the following error message : For more information, see the about_Remote_Troubleshooting Help topic.
At line:1 char:1
+ New-PSSession -ConnectionURI "$connectionUri" -ConfigurationName Micr ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotingTransportException
+ FullyQualifiedErrorId : -2144108477,PSSessionOpenFailed
Failed to connect to an Exchange server in the current site.- bobdowdenCopper Contributor
@ Have this issue too, any fix yet?
- VancelotCopper ContributorMore information. If I try to open the Exchange Toolbox, I get the following error:
Type is not resolved for member 'Microsoft.Exchange.Configuration.MonadDataProvider.MonadDataAdapterInvocationException,Microsoft.Exchange.Configuration.ObjectModel, Version=15.0.0.0, Culture=neutral, PublicKeyToken=xxxxxxxxxxxxx'.
System.Runtime.Serialization.SerializationException
at Microsoft.ManagementConsole.Internal.IMessageClient.ProcessRequest(Request request)
at Microsoft.ManagementConsole.Executive.RequestStatus.BeginRequest(IMessageClient messageClient, RequestInfo requestInfo)
at Microsoft.ManagementConsole.Executive.SnapInRequestOperation.ProcessRequest()
at Microsoft.ManagementConsole.Executive.Operation.OnThreadTransfer(SimpleOperationCallback callback)- HappyHappyManCopper ContributorI have the same exact issue with EAC is keep asking username/password and PowerShell session is not connecting to Exchange 2019 CU14 servers.
- VancelotCopper ContributorI am glad I am not the only one. I have not found a solution yet. I am almost to the point where I will open a support ticket with Microsoft. If you find a fix, please post it here.