Rejected status

[Will Phinney]

Good morning everyone,

Has anyone ever seen phones go into reject status for no reason? The error on the phone is 'Registration Rejected : Security Error. This happens all over the company and completly at random. I have talked with TAC and they said they see a broken socket which leads me to the network, but I can't pinpoint it. Very weird. Thanks in adavnce.

-Will

[Will Phinney]

Also, if I move the device pool this fixes the issue. And sometimes I can reset it from call manager, but more times than not I have to unplug the phone and plug it in.

[Carlo Poggiarelli]

Hi Will.

Which version of CUCM are you running?

Thanks

Regards

Carlo

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"The more you help the more you learn"

[Will Phinney]

8.6.2.22041-1

[Aman Soi]

Hi Will,

any changes done in the configuration like adding of ports in Firewall or applying ACLs.

Which phone models are these?Is it happening for all IP phones.

regds,

aman

[Will Phinney]

That's the other interesting thing. It's at complete randomness and no new ACL's and no new firewall..... The broken socket screams network, but I would think there would be so many more phones breaking at once.

[Aman Soi]

Hi will ,

How many CUCM servers u have in cluster? are they working fine.

Is this happening for phones deployed in same LAN where CUCM is deployed?

regds,

aman

[Will Phinney]

So I finally got a few more of these and span a port on the switch and looked at the traffic. I see the following:

publisher----- phone (register reject message) malformed packed

I keep seeing this and eventually it rejects all together, but why would the malformed packet happen?