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Consider the following scenario:

  • You deploy four front-end servers and a survivable branch server (Windows SBS) in a Microsoft Lync Server 2013 enterprise standard pool.

  • You register multiple Lync phones to the SBS.

  • Many users sign in to all available Lync phones.

  • The SBS is then shut down.

In this scenario, the Lync Phone Edition devices may be unable to sign in to the front-end servers automatically. Additionally, the users may receive a 404 error code.


To resolve this issue, install the following update:

2937305 August 2014 Cumulative Update 5.0.8308.738 for Lync Server 2013, core components

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