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Bounce the RIS DB Collector (Realtime Information Database Collector Service).
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<div>This usually brings it backup, then logout / login of the admin GUI.</div>
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<div>If the issue keeps happening after restarting, dig a little deeper; DNS, NTP ... all the usual suspects.</div>
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<div>Outside of a bug, this can be the result of a network / connectivity blip ... etc. Nothing to really worry about unless it keeps happening.<br>
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<div id="AppleMailSignature">Sent from my iPhone</div>
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On May 20, 2018, at 08:16, Jason Aarons (Americas) <<a href="mailto:jason.aarons@dimensiondata.com">jason.aarons@dimensiondata.com</a>> wrote:<br>
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<p class="MsoNormal">I’ve got a 3 subscriber cluster 11.5.2SU2 with about 3,500 phones. I’ve got a handful of about 300 phones that are working, no problem. I can call them, they can call me. However under Device > Phone I see them not showing an IP address
and show None.<o:p></o:p></p>
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<p class="MsoNormal">Jason Aarons, CCIEx2 No. 38564<o:p></o:p></p>
<p class="MsoNormal">Advanced Technology Consultant<o:p></o:p></p>
<p class="MsoNormal">Dimension Data<o:p></o:p></p>
<p class="MsoNormal">904-338-3245<o:p></o:p></p>
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