I am having an issue at a client where every couple of days, phones are unable to register with CM. They are fine as long as they don't get reset/restarted... but if I do reset them, they are stuck with "registering" on the screen and never are able to register.
I have solved the problem the last couple times by stopping and starting ccm.exe on the offending server (it has happened on both my subscribers at different times).
Obviously this isn't the best solution. Any ideas as to what might be causing the issue?
No TFTP timeout at all - sniffer capture shows that it contacts TFTP fine, then subscriber fine. All of a sudden, the phone sends an "unregister" request to the subscriber. Then the registration process starts all over again.
I found that after about 1.25 hrs of waiting and watching, the phone finally registered.
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The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...