I have a customer who is using Office 365 and are joined to a local AD (Server 2003 SP2 Standard Edition).
The error message first occurs after the client computers joins the local domain, there are no error messages prior to the domainjoining.
My first reflection was that it should have something to with GPO:s, but I can't find any GPO that has anything to do with Exchange or Lync.
- This error message occurs on all of the customers OS plattforms and architectures (XP/32bit, Vista/32bit and Win7/64bit)
- The error message is in Swedish, I will now try to make a rough translation of the error message on the fly: "[Lync] Unable to connect to the Exchange-Server. Reconnections will be made in Lync. History, answer machine and Outlook-related functions may not be accessible or may not be updated until the connection is reestablished."
- The error message first occurs after the client computers joins the local domain (abc.local), there are no error messages prior to joining the domain.
- All extrernal DNS entries are correct (the external dns is delegated to Office365 online)
- No singlelogon or such is installed on the clients or the 2003 server.
Again, Lync works without this error message before the computer is joined to the abc.local domain.
Is exchange online autodiscover is working from client machine ? Can you cross check exchange autodiscover records on local DNS ?
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Hi Saleesh NV
Thanks for the fast reply
The autodiscovery record is resolving fine on local DNS (also checked registry for autodiscovery, and it is correct).
The problem occurs wherever the client is located, so I belive it's not a local DNS problem, since it's the result when connecting from home for example when the local DC-server DNS isn't used (ISP DNS used there).
Please check if there is script to run on the domain PC to configured Proxy Server after the PCs are joined the domain.
In the lync client configuration information, please check the EWS information is correct.
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