cannot login to EAC or Exchange powerShell after restoring Exchange 2016 Server from backup

dirkdigs 921 Reputation points
2021-03-18T03:31:07.613+00:00

getting HTTP 500 error
and redirect to URTL https://localhost/owa/auth.owa when trying to login to EAC
I also cannot open PowerShell getting access denied
this is happening after we restored the Exchange server from Veeam backup .

IS there a something I need to do to get this going ? Looks like all Exchange Services are running .

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. dirkdigs 921 Reputation points
    2021-03-24T18:06:39.357+00:00

    Hello it turned out that Trend Micro AV was blocking the access.

    Once I whitelisted the internal Exchange URL's it started working .

    1 person found this answer helpful.
  2. Kael Yao-MSFT 37,496 Reputation points Microsoft Vendor
    2021-03-19T02:04:54.86+00:00

    Hi, @dirkdigs

    Did you make some changes to the active directory before you restore the server?
    For example, modify the members of the groups in ADUC (Active Directory Users and Computers).

    Please check if there are some error events like Event ID 4 generated in the Event Viewer>Application Log on the server.
    If you can find Event ID 4 in the application log, the problem may be caused by incorrect permission settings of the server.
    Please refer to this document to troubleshot the problem:
    Error occurs in EMS, EAC, ECP, OWA, or Outlook on the web in Exchange Server 2013 or Exchange Server 2016

    In addition, please note that the supported method to backup Exchange server is using Windows Server Backup.

    If the response is helpful, please click "Accept Answer" and upvote it.
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