The update from a time server only seems to work when the HG612 is used on an ADSL connection.
For VDSL2 connections, log in to a telnet session & start BusyBox.
At the prompt type something in this format:-
# date -s 111617572012
using the format MMDDhhmmYYYY
That would give:-
Fri Nov 16 17:57:00 UTC 2012
The modem should then keep time until the next reboot.
If using the Windows graphing scripts, there is a batch file named SET_HG612_DATE_AND_TIME.BAT that automatically logs in, sets the current time to your PC's system time (within a second or two) & logs out again.
The modem's internal log should then look something like this:-
2012-11-16 18:4:54 Notice 0 admin login
Edited by Bald_Eagle1 (Fri 16-Nov-12 18:05:50)