Setting the Time Zone field doesn’t make a difference. No matter what it is set to, checking the NTP option and pressing the “set timezone” button does not change the date/time. I would expect that changing the timezone should cause the time to be offset appropriately, but that doesn’t happen, which is another indication to me that the EZSrve is not contacting a time server.
One thing that I noticed is that as soon as I change the Time Zone setting, the page refreshes before I can press the Set Timezone button. This happens with Firefox 3.5, and with IE8 in both normal and compatible modes. If I do nothing, the page still refreshes every 5 seconds.