I have several SPA504g deployed. We switched to DST last week and none of them will now keep the correct time. We reboot them and they are correct for a while, but then they "forget" to apply the DST rule and run 1 hour behind the current local time. I have attached the config from one of them (they are all identical). This is happening on the 7.5.2 and 7.5.5 firmware on two separate customer locations!