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- HDX Unable to register with Lync

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05-03-2013 01:28 PM
I am currently having an issue with multiple polycom HDX units, the units attempt to register with Lync and when doing so hang in a limo-like state where its neither registered or rejected on the UI.
When investigating the logs, i discovered this:
2013-05-03 13:36:15 DEBUG avc: pc[0]: SIPNIC[0]: SIPProxyRegistrar:Register response of 403
2013-05-03 13:36:15 DEBUG avc: pc[0]: SIPNIC[0]: SIPProxyRegistrar:Registration failed.
Model Polycom HDX7000 and firmware 3.0.5 - Lync Server 2010
Units are all set to log in with their own ad enabled accounts and point to a specific SIP server, of the 10 units we have operational only 3 are working (they are all configured the same way).