troubleshooting Question

Exchange 2013

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pchettri asked on
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am seeing following error when I use test-casserverconnectivity. Some of my iphone 6 pus user keep losing connection.



Failure
[System.Net.WebException]: The underlying connection was closed: Could not establish
trust relationship for the SSL/TLS secure channel. Inner error
[System.Security.Authentication.AuthenticationException]: The remote certificate is
invalid according to the validation procedure.

I was able to reconnect them by removing user based device from ADsiedit but now it is not working either.

Also, I have connection error when I tried connecting from Outlook 2016. Email is working on Outlook 2013 and 2011 (mac).

Android users and old Iphone users are able to connect to email
ASKER CERTIFIED SOLUTION
Mohammed Hamada
Azure / Office 365 Integration engineer

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