VIM4 System clock synchronized problem

Which system do you use? Android, Ubuntu, OOWOW or others?

Ubuntu 20.04

Which version of system do you use? Khadas official images, self built images, or others?

oowoo and self built images both

Please describe your issue below:

To time synchronize, I installed chrony.

But with LTE module, the time synchronization system does not work.

If I remove the LTE modem and connect the Ethernet port to eth0, the time synchronization works fine, but it seems that the LTE modem doesn’t work.

Hello @sm-auto

Can you access the internet with LTE module well?

Yes I can connect and use it

But I solved the problem the reason is that I didn’t set the APN.

Thank you for your help

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