Firmware Upgrade breaks SNTP

[Mark1972]

(01-09-2013 07:55 PM)Yealink Support Wrote:  

(01-09-2013 12:32 AM)mark.s.lowe Wrote:  We have 10 phones (9 - T26, 1 - T28) and a 3CX PBX server. The phones get their provisioning from the server for SNTP. SNTP working great.

We upgraded to the 3CX supported firmware 6.70.0.103 and SNTP stops working on 9 of the 10 phones. Why?

I've tried the following:

1. Reset to factory default and reprovision - SNTP does not work.

2. Manually set SNTP on the web interface - SNTP does not work.

3. Manually set SNTP on the phone's interface - SNTP does not work.

4. Downgraded firmware back to 6.61.0.83 - SNTP does not work

5. Upgraded firmware back to 6.70.0.103 - SNTO does not work.

Again 1 of the 10 phones is working great. It's not a firewall issue since everything was working prior to the firmware upgrade and 1 of the phones gets its date/time correctly.

Any thoughts?

Hi,
Please help to make below items clear for us.
1. which phone gests the correct date and time after the firmware upgrade?
2. Could you please go to web UI to check if all the NTP servers are the same in all the phone ?
3. Could you please get the PCAP trace to see if the ntp server has response to the phone request about the time and date?


Best Regards!
Yealink Support Team

Answers:
1. A T26 gets the correct time. I actually upgraded the firmware at a later date than the others. But I also think this was on a different firmware than the other 8 T26's prior to the upgrade. It was our spare phone.

2. All phones get the same NTP server and I confirmed it in the WebUI including the working T26.

3. Enclosed PCAP from non working T26 - I change the NTP check frequency to 60 secs. Looks like NTP is resolved but the phone doesn't update on the screen.

Regards,
Mark