HP MSM720 NTP
How to get HP MSM720 syncing with NTP server
In case you've configured your HP MSM720 from the console, set the NTP type to ntp, and you were wondering why the debug log shows something akin to debug mgetdate Failed TP time synchronization using server time.serv.ver then the mistake is actually very simple.
Issuing ntp protocol ntp means the controller will set the time synchronization protocol to Time Protocol not Network Time Protocol, obvious, isn't it? Just set it to sntp and you're somewhat golden, it's not super accurate but it'll work with more up-to-date things. Though that too has a small issue, it syncs the time very very infrequently, only once every 24h or when you click "Save" in the WebGUI, but it does sync if you were wondering.