klarquist
asked on
Lync is experiencing connection issues with the exchange server/Microsoft Lync MAPI COM Server
Hello,
We have Lync 2010 deployed internally and externally. Everything works fine internally but when logging in externally the Lync client displays the error at the bottom right of the client that says "Lync is experiencing connection issues with the exchange server."
Then, a short amount of time later a pop up box that says "Microsoft Lync MAPI COM Server" appears. If you enter your password, the red error on the bottom of the client goes away.
Or, if you open Outlook and enter your password to login to Outlook Anywhere, the error also goes away and the MAPI COM window never even pops up.
OWA, Outlook Anywhere, ActiveSync, Autodiscover and EWS are all published though UAG and appear to all be working fine from a user standpoint.
Also, all test ran using the the Exchange Remote Connectivity Analyzer found https://www.testexchangeconnectivity.com/Default.aspx are successful.
Our UAG trunk for exchange is named exchange2010, and our Authentication and Authorization Servers are named Domain Controllers, fyi.
In the UAG Application log when the Lync client is first logging in, there is a warning that says
"User with source IP address failed to log into the trunk exchange2010 (secure=1) using authentication server Domain Controllers with session ID longstringoflettersandnumb
So, this is very weird. Does anyone have any insight into this issue? I feel like the issue may lie with the UAG configuration.
Outlook Anywhere is set to use Basic authentication over SSL, as is Autodiscover. We have both an A record and SRV record for Autodiscover, both of which work correctly.
There are also no certificate issues. Certificates for the Front End Pool, the Edge Pool, Client Access Server and UAG Server/Listener are all installed and configured correctly.
Thanks,
Simon
We have Lync 2010 deployed internally and externally. Everything works fine internally but when logging in externally the Lync client displays the error at the bottom right of the client that says "Lync is experiencing connection issues with the exchange server."
Then, a short amount of time later a pop up box that says "Microsoft Lync MAPI COM Server" appears. If you enter your password, the red error on the bottom of the client goes away.
Or, if you open Outlook and enter your password to login to Outlook Anywhere, the error also goes away and the MAPI COM window never even pops up.
OWA, Outlook Anywhere, ActiveSync, Autodiscover and EWS are all published though UAG and appear to all be working fine from a user standpoint.
Also, all test ran using the the Exchange Remote Connectivity Analyzer found https://www.testexchangeconnectivity.com/Default.aspx are successful.
Our UAG trunk for exchange is named exchange2010, and our Authentication and Authorization Servers are named Domain Controllers, fyi.
In the UAG Application log when the Lync client is first logging in, there is a warning that says
"User with source IP address failed to log into the trunk exchange2010 (secure=1) using authentication server Domain Controllers with session ID longstringoflettersandnumb
So, this is very weird. Does anyone have any insight into this issue? I feel like the issue may lie with the UAG configuration.
Outlook Anywhere is set to use Basic authentication over SSL, as is Autodiscover. We have both an A record and SRV record for Autodiscover, both of which work correctly.
There are also no certificate issues. Certificates for the Front End Pool, the Edge Pool, Client Access Server and UAG Server/Listener are all installed and configured correctly.
Thanks,
Simon
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So the user should either launch Outlook first, or just know this is normal.