T4X phones reboot/hang randomly

[Jeremie]

Hi,

I'll try the AC adapter soon, I bought some of them but I don't think the problem come from here.

Anyway, all options are disabled, auto provision, VLAN, LLDP.

This morning the phone (T46) was very slow but not hanging. A T42's rebooted once.

A strange thing's the reboots doesn't affect all the phones. Some of them are not updated.

Another strang thing, in the main menu, the updated phones display :

- 1.Status
2.Directory
3...
4...
5...
6.Directory

Yes, two Directory.

The non-updated phones display :

1.Status
2.Feature
3.Settings
4...
5...
6.Directory

This is an "auto-provision" problem, I'm right ?

Thanks for your help.

(02-26-2017 07:34 AM)zouym Wrote:  hi Jeremie

thanks for your information and sorry for the late reply .

as i checked the reply above and find that it seems the phone is under auto provision that may cause it to upgrade and auto provision may also cause phone reboot .

at the same time you mentioned you use static IP address , then please kindly check if the provision URL is set on the web page :

Settings -> Configuration -> server URL

if no , then it is advised to check below :

1. is there any network multicast paging packages ? this may cause phone reboot

2. have you configured VLAN or LLDP to the phone ? you can also try to disable them for a double check , web page path :
Network -> Advanced

3. you can use the power adapter but not connect the phone to network , then if the phone still reboot itself , then please check the power supply .

if phone not reboot , then it is related to network side, please kindly check step 1 and 2 again .

also you can refer to below FAQ :
http://support.yealink.com/faq/faqInfo?id=76
http://support.yealink.com/faq/faqInfo?id=125

let me know if any update .

TKS & BR

Michael