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<h1>Publishing Topology on Frontend </h1>
<p>Some of the issues that might face you while you’re deploying Skype for Business/Lync is something that might be stuck within AD. </p>
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<p>A previous installation that was not properly cleaned could result in a failure of publishing the Topology. </p>
<p>Here is one issue that I had while deploying one for one of my clients.</p>
<h5>Issue</h5>
<p>Enable-CsTopology : Multiple Active Directory entries were found for type &#8220;ms-RTC-SIP-EdgeProxy&#8221; with ID in a multiple Domain Environment </p>
<h5>Active Directory Issue?</h5>
<p>Enable-CsTopology : Multiple Active Directory entries were found for type &#8220;ms-RTC-SIP-EdgeProxy&#8221; with ID</p>
<p>&#8220;lyncedge.domain.local&#8221;.</p>
<p>At line:1 char:1</p>
<p>+ Enable-CsTopology</p>
<p>+ ~~~~~~~~~~~~~~~~~</p>
<p>+ CategoryInfo : InvalidData: (:SourceCollection) [Enable-CsTopology], InvalidDataException</p>
<p>+ FullyQualifiedErrorId : DuplicateADEntry,Microsoft.Rtc.Management.Deployment.ActivateTopologyCmdlet</p>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image001-5.png"><img width="845" height="309" title="clip_image001" style="margin: 0px; display: inline; background-image: none;" alt="clip_image001" src="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image001_thumb-5.png" border="0"></a> 

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</p>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image002-5.png"><img width="967" height="545" title="clip_image002" style="margin: 0px; display: inline; background-image: none;" alt="clip_image002" src="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image002_thumb-5.png" border="0"></a></p>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image003-5.png"><img width="1240" height="360" title="clip_image003" style="margin: 0px; display: inline; background-image: none;" alt="clip_image003" src="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image003_thumb-5.png" border="0"></a></p>
<h5>Solution:</h5>
<ul>
<li>Open ADSIEDIT and look in the following snapshot. Open Configuration for your DC</li>
<li>Collapse the menu and click on Services</li>
<li>Click on RTC Service</li>
<li>Click on Global Settings and on the right pane look if there&#8217;s any duplicated entries and remove them. </li>
<li>As you can see on my right pane I have 2 duplicated (msRTCSIP-EdgeProxy) and I&#8217;m going to remove one of them and see if I can publish my topology or not. But before that I will have to make sure that I export the entry that I wanna delete.</li>
</ul>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image004-5.png"><img width="1235" height="477" title="clip_image004" style="display: inline; background-image: none;" alt="clip_image004" src="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image004_thumb-5.png" border="0"></a></p>
<p>I right clicked on the last value and deleted it and here how it became now.</p>
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<p><a href="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image005-5.png"><img width="1329" height="549" title="clip_image005" style="margin: 0px; display: inline; background-image: none;" alt="clip_image005" src="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image005_thumb-5.png" border="0"></a></p>
<p>Now I will try to publish my topology and see what happens, my topology publishing failed with a new error this time.</p>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image006-5.png"><img width="1273" height="188" title="clip_image006" style="margin: 0px; display: inline; background-image: none;" alt="clip_image006" src="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image006_thumb-5.png" border="0"></a></p>
<p>I will have to go and check where&#8217;s this coming from, since it mentions TrustedService. I will go look in the trusted service</p>
<p>This is not going to be easy, as you need to becareful where you look .. You will need to make sure that you&#8217;re looking at the right FQDN</p>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image007-5.png"><img width="1228" height="561" title="clip_image007" style="margin: 0px; display: inline; background-image: none;" alt="clip_image007" src="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image007_thumb-5.png" border="0"></a></p>
<p>Here I could find the value MRAS for the FQDN Edge server </p>
<p>So I looked here and found 2 identical entries with a different (CN) if you scroll down you will see that the GruuId is the same, FQDN is the same, port is the same.</p>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image008-4.png"><img width="1064" height="497" title="clip_image008" style="margin: 0px; display: inline; background-image: none;" alt="clip_image008" src="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image008_thumb-4.png" border="0"></a></p>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image009-4.png"><img width="981" height="593" title="clip_image009" style="margin: 0px; display: inline; background-image: none;" alt="clip_image009" src="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image009_thumb-4.png" border="0"></a></p>
<p>Let&#8217;s delete one of them and see again if we can publish our topology, So I deleted the one that starts with {b344}</p>
<p>I will do this using the Lync Powershell, you can see below that the Topology was published successfully.</p>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image010-4.png"><img width="868" height="148" title="clip_image010" style="margin: 0px; display: inline; background-image: none;" alt="clip_image010" src="https://www.moh10ly.com/wp-content/uploads/2019/11/clip_image010_thumb-4.png" border="0"></a></p>
<p>To resolve the warning you will have to issue the cmdlet Enable-CsAdForest after the Enable-CsTopology</p>
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