hello i know its old post but i find a very simple solution
download DCC for vuplus, open the software and configure it with the ip of your routeur, the ip of vuplus, etc...
then, go to Telnet and write this :
date -s YYYY.MM.DD-hh:mm:ss (where YYYY is the current year, etc...)
for example for now in France :
date -s 2016.05.24-01:55:00
and Voila !