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Who Me Too'd this topic

SIP 7821 - wrong date and time on some phones

Hello,
I have problem with date and time on some phones. Most of them displaying the time and date correctly, but some not.
All phones are SIP 7821 with this same software version. I have configured NTP server on router and under 'voice register global'.
Factory reset does not work on these phones. All phones register normaly, only issue is the wrong date/time.
I've tried to change and/or delete NTP server and timezones on router and under 'voice register global' (and every time i do 'create profile').
Any ideas?

PS. Sorry for my english. :)

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