T20 and T21p registration problem

[raltel]

I am starting to see this with specific extensions at specific install - Yealink phones (so far just T20 and T21p, latest firmwares) are coming un-registered from Asterisk even though the phone thinks it's still connected - under it's status it shows registered, but Asterisk says no.
I am having the problem with 16 phones, and not having it on the other 35 phones at same location.
The re-register time was reduced to 120 seconds.
All the system work in a dedicated vlan (using HP 1910 POE switchs), installed a year ago, and without configuration or hardware changes on recent time.

Thanks in advance.
Raltel

[complex1]

Hi,

Did you reboot the specific phones who are un-registered to Asterisk and after you reduced the re-register time?

Are the phones now registered to Asterisk and how many time does it take till the issue occur again?

[raltel]

(12-29-2016 06:48 PM)complex1 Wrote:  Hi,

Did you reboot the specific phones who are un-registered to Asterisk and after you reduced the re-register time?

Are the phones now registered to Asterisk and how many time does it take till the issue occur again?

Hi,
If I reboot the phones, they register ok.
Note: I dont need to reboot, I enter the phone via web and clicking on "Confirm" in the Account tab (without changing any value !!!) I can see the registration in Asterisk CLI.

Reducing the re-register time (tested some values from 3600 to 60) dont solve the problem.

This issue occur with intervals of 2 or 3 days. Always phones of the same group of 16, and not simoultaneusly.

The only difference I find is that these phones have little daily use, but that happens from the first day.

PD: sorry for my english

[Lucia_Yealink]

Hi Sir，

Please share us more information below so that we can locate the problem:
1. when the problem happened, can the phone make or receive a call?
2. Please kindly provide the level 6 syslog, config.bin and pace trace when reproduce the issue.
About how to get the three files, please refer to the FAQ below:
http://support.yealink.com/faq/faqInfo?id=313

it is advised to use a wireshark tool to get the pcap file , for how to download the tool and use it , please refer to the link below :
http://ftp.yealink.com/?ShareToken=B695E...5B045663F2
for the syslog, please export it to server side , before phone reconnect, you can refer to the guide download from below link :
http://=http://ftp.yealink.com/?ShareTok...5B045663F2

3. To make a comparision, please also kindly provide the level 6 syslog, config.bin and pace trace of the phone that can work normally.

Thank you for your info in advanced.

Regards,
Lucia