Can't Sign In Lync 2013 Test Environment Windows Server 2012

Heyas,

Can anyone give my some assistance as to why I can't sign in to Lync 2013 using the Lync 2013 Basic client.

Screenshot for details.

Any assistance is welcome.

Thank you.
Lync-Signin-1.png
ZackGeneral IT Goto GuyAsked:
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ZackGeneral IT Goto GuyAuthor Commented:
Finally worked it out. The reason why I couldn't sign was the SIP address was pointing to domain lab.local when it should have been labs.local look at original screenshot closely. When I re-published the topology and assigned the necessary CA's to it the Lync client worked perfectly.
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Ayman BakrSenior ConsultantCommented:
Ensure that the Lync Server is up and running by checking the Lync services are being up. Also check the Front End service being started - see this:

http://support.microsoft.com/kb/2795828

Moreover, is the server listening correctly to TCP port 5060. Verify if the firewall is enabled that TCP port 5060 is allowed. You can also check this thread:

http://social.technet.microsoft.com/Forums/lync/en-US/e2514c4e-1961-42cb-8017-91602413b225/lync-server-not-listening-on-port-5060?forum=ocsvoice
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MaheshArchitectCommented:
I would recommend uninstalling or disabling any web filtering or web protection (pop up blocker, internet security software's \ programs and then try logging in.

http://techspeeder.com/2013/10/01/cant-sign-in-to-lync-2013-the-server-is-temporarily-unavailable/

http://community.office365.com/en-us/forums/166/t/153663.aspx?PageIndex=2

Mahesh
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ZackGeneral IT Goto GuyAuthor Commented:
Heyas,

Neither of those worked. Any other tips are there are logs I can consult.

Thank you.
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ZackGeneral IT Goto GuyAuthor Commented:
Heyas,

An interesting thing I have found when a perform a NSLookup on the SIP domain the result I get is failure of the lookup.  See attached screenshot.

Can you provide clarification?

Thank you
Lync-Signin-2.png
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MaheshArchitectCommented:
Have you created Dns zone for sip domain in dns server internally and externally (optional) ?

Please check \ verify with below link
http://technet.microsoft.com/en-us/library/gg398680.aspx

Mahesh
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ZackGeneral IT Goto GuyAuthor Commented:
My final query is that there anyway I have identified this quickly using the Lync logs or some sort of troubleshooter.

Thank you.
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Jakob DigranesSenior ConsultantCommented:
uuuhm .... sorry - but is your last post a question?
the NSLOOKUP you try is wrong
should be _sipinternaltls._tcp.domain.com not _sipinternaltls.tcp.domain.com

btw: make sure lyncdiscoverinternal.domain.com points to FE-server
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ZackGeneral IT Goto GuyAuthor Commented:
Thank you for help and clarification.
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