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ihsmove's avatar
ihsmove
Copper Contributor
Jun 07, 2023

Exchange Server 2019 OWA web app when open calendar keep direct login page

After migrate all mailbox from Exchange 2013 to 2019, Outlook client / mobile app working fine. However when open OWA web app then go Calendar, may be wait for few second or click on any event, it will reload to login page. I can't see any error from event log or inetpub\logs\LogFiles. If owa IP address point back to Exchange 2013, web app calendar work again.

 

I tired add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0\BackConnectionHostNames with exch2019.domain.local, domain.local and autodiscover.domain.local didn't help.

 

The exchange server only allow access internally or by vpn connection.

 

Any idea about this? Thanks

    • ihsmove's avatar
      ihsmove
      Copper Contributor
      Hi RecepGencaslan

      Thanks your update.

      Yes all virtual directory set to webmail.domain.com and autodiscover.domain.com
      both DNS record in internal DNS is exchange 2019 DAG ip address.

      Since now having issue, webmail.domain.com DNS record fall back to exchange 2013 ip address.

      will have a look on the article see any missing steps.

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