Was your old NTP server a windows based one?<div>I had problems before with NTPv3 from a windows source.</div><div><br></div><div>Once changed to NTPv4 all works ok.<br><br><div class="gmail_quote">On Tue, Feb 19, 2013 at 6:32 PM, James Dust <span dir="ltr"><<a href="mailto:james.dust@charles-stanley.co.uk" target="_blank">james.dust@charles-stanley.co.uk</a>></span> wrote:<br>
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<font style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks for everyone's help on this,<br>
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We resolved the problem by making a core switch on our network the ntp source and syncing cucm with it.<br>
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Regards <br>
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James</font><br>
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<font style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><b>From</b>: James Dust
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<b>Sent</b>: Tuesday, February 19, 2013 12:42 PM<br>
<b>To</b>: <a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a> <<a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a>> <br>
<b>Subject</b>: NTP sync problem <br>
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<p class="MsoNormal">Our cucm cluster suddenly stopped syncing with our internal NTP servers recently for no apparent reason.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Our version is: 8.6.2.22900-9</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I have been informed no work was carried out on the servers running the NTP service. Has anyone else come across a similar issue?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">James</p>
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