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Lync Client errors

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Recieve this error everytime i run Lync even though all is setup OK and office 365 configures my DNS.

Communicator was unable to resolve the DNS hostname of the login server

I checked the settings in Office 365 and all seems ok with the records.

Can someone help me whi this is not working.




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Verified Answer
  • Hello Marvincsanderson,

    Have you added the required dns records of online service for your domain on the dns server? To make sure work well with Office 365, you should add the required DNS records (MX, CNAME, SRV, etc) for online service on your dns registrar first. You can find all the required dns records refer to steps below.

    --Logon to Microsoft Online Portal (MOP) at with a Global Administrator.

    --Click Admin -> Domains -> Select your domain -> View DNS settings.

    Meanwhile, to narrow down the problem, you can also login to lync client with a user using as domain suffix and check if you can access Lync Online properly.

    How to troubleshoot authentication and connectivity issues in Lync Online

    Thank you.

    Jack Sun

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