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Hi guy's
I am having a problem to connect to exchange online form PowerShell on a server 2012.
When try to connect get this error: Connecting to remote server outlook.office365.com failed The SSL connection cannot be established
I made sure that the TLS 1.1 and 1.2 are enabled and I can access the outlook.office365.com from IE browser but when try to access the Exchange online get this error.
Any suggestion?
Thanks
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Yeah this issue occured. When the server is not connect rightly. As we were facing the same issue for gta vc apk download. But when I contacted my developer he did a few changes and now we easily access to the powershel without any error. So do some changes in the server name of it username your issue will get fixed.
I am writing here to confirm with you any update about this thread now.
If the suggestion below helps, please feel free to accept it as an answer to help more people.
PowerShell uses .Net settings for TLS, so check for that:
[Net.ServicePointManager]::SecurityProtocol
and if needed, update via:
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
Hi michev,
Thank you for your reply,
first command returen Ssl3, Tls
is this means that powershell on server 2012 does not support the connection to the Exchange online?
Thanks
It means that you need to enable support for TLS1.2. If you have already installed the necessary updates, run the second cmdlet above.
Just ran the [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 on the server and now I can see Tls12 but still unable to connect and get the same error, it looks like this issue has something to do with server 2012!! I try to connect from multiple server 2012 and get the same error.
I just install the powershell 5.1 and install the ExchangeOnlineManagement modul and can see these tls all enableb but still get the same error on any server 2012
any suggestion why connecting from server 2012 is not working?
Thanks
@Vasil Michev , Thanks for your reply, I just check the registry HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\ and there I can see the
TLS 1.2\Clients and a registry key DisabledByDefault withy the value of 1 I set it to 0 but still unable to connect to the exchane online.
Do we need to add the server key and DisabledByDefault to 0? or that is noet needed?
Follow this article to set ExecutionPolicy as RemoteSigned, make sure basic enabled on your computer:
Set-ExecutionPolicy RemoteSigned
winrm get winrm/config/client/auth
About managing TLS, you could follow this blog.
You also need to make sure Exchange Online IP address could be accessed from your client.
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Thank you for your reply,
I just check and can see that basic is already enabled
I have upgrade the powershell to 5.1
also tls 1.2 has been enabled on this server 2012
I cannot access the exchange online from any server 2012 in the domain, only from server 2012 R2 and higher!!
I created a new Windows Server 2012 recently, I could connect to Exchange online without any modification:
I would suggest you download a new Windows Server ISO from here, then install and try with it.
I also suggest you disable IE filer, prevent connection are limited:
