I own both an RUT950 and an RUT240. I need both of these modems to have the correct local time, so I have tried to configure NTP. Both modems are configured to use a local NTP time server, and I can confirm that each modem is able to communicate with the server. For some reason though, the modems do not keep time very well. If I sync their times, after a short period their clocks will be out by several minutes, then later by several hours. I have even seen them be out by months within a short period of time.
For the configuration, I have checked the 'Enable NTP' option with an appropriate update interval. The selected timezone is correct, and I have checked the 'save time to flash' option. There is only the one time server configured (on a local IP).
I have either not configured NTP correctly on these devices, or there is something wrong with the firmware. Is anyone able to provide some assistance or have a similar experience?