I saw some similar threads in the past but didn’t see a resolution. I have some yealinks that seem to be displaying some seemingly random dates/times. The PBX has the correct time and the phones are using 0.us.pool.ntp.org. My first thought was that the router was at fault since there was some port forwarding done for port 123 which I believe is the NTP port, however, the remote phone in another state is having the same issue.
I ended up running a bunch of updates on the PBX and the virtual machine took a dump. Built a new one and restored from a backup and we’re having the same issues which makes me think this has to be somewhere in the PBX.
Here’s the template
The configs look fine
and the time one the server is correct