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Member_2_6492660_1
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All Outlook clients failing to connect to Exchange 2016

Exchange 2016 CU9 DAG 2 Nodes
Windows 2016 Data Center
Outlook 2013/2016

Today I woke up and all my Outlook clients are disconnected from my Exchange 2016 Servers.

Restarting the clients did not help

starting outlook in safe mode did not help either

I can access the accounts via OWA

Hope I can resolve this before everyone gets in today

What can I look for?

Any commands?

Thank you in advance
ExchangeOutlookWindows OS

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Member_2_6492660_1

8/22/2022 - Mon
sara2000

I guess you already checked database mount status.
Have checked whether you have any DNS issue?
Also outlook connectivity?
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Member_2_6492660_1

ASKER
MAS

Thank you for your help

reverted back app pool change restarted IIS  now clients accessing
Member_2_6492660_1

ASKER
REopen this

Clients not connecting again

Exchange 2016 is crap
Experts Exchange is like having an extremely knowledgeable team sitting and waiting for your call. Couldn't do my job half as well as I do without it!
James Murphy