Cisco 6941 Firmware upgrade to 9-4-1-3SR3 in CUCM 8.6.2 Time Synchronization Issue

[Andrade_Narcis]

Recently upgraded 6941 ip phones for a client from SCCP69xx.9-2-1-0 to SCCP69xx.9-4-1-3SR3. The  time is now several hours ahead. No changes have been made to CUCM or NTP Servers. Has anyone ever experienced and taken steps to fix this issue.

[Ratheesh Kumar]

Hi there

Can you check your CUCM NTP Status. If your NTP associations are good. then most likely its a firmware issue. Whats the behavior if you use a different firmware.

I found a similar issue with a community member with CME and the same firmware for time mismatch. no solutions though
https://supportforums.cisco.com/t5/ip-telephony/cme-ip-phone-time-mismatch/td-p/3378819

Hope this Helps
Cheers
Rath!

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[Andrade_Narcis]

Hi Kumar,

The NTP Associations seem to be fine, the firmware utilized before upgrade was SCCP69xx.9-2-1-0, didn't have any problem with time synchronization. Only when firmware was upgraded this issue occurred.

[Ratheesh Kumar]

If the time mismatch was triggered after the firmware upgrade then sounds like a bug. Go ahead and open up a TAC. All the best !!

Hope this helps

Cheers
Rath!

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