I have some “weird problems” regarding some devices (with NetDCU11) in Japan.
There are 4 devices that have their time rolled back by 1 hour, happened on Nov 2nd or 3rd Nov
But the problem is that only these 4 units are behaving this way as if they are triggered by daylight savings time.
Other units in the same hospital are not affected. The units are installed all in same way.
Hello,
are all units connected to the Network?
Assume you set "HKEY_LOCAL_MACHINE\Software\Microsoft\Clock\AutoDST" to zero for all devices?
I am not sure what happens if you are connected to a Network and time server is active. It should recognize the "AutoDST" flag, but I am not sure if it is so!
Please check following if time server is runnuing , set Flags to 0x04 (or at least add |= 0x04) and test the behavior of the device in a Network:
PS: assume on NetDCU11/WCE6 servcer list is a bit different. DST server should not appear.
Hello,
the units are not connected to a network since they are running in a hospital due to security reasons.
>> the units are not connected to a network since they are running in a hospital due to security reasons.
<< Ok, so we can exclude the time server. But can we be really sure that nobody can plug in the Networkcable? Not even a service technician?
And what is about "HKEY_LOCAL_MACHINE\Software\Microsoft\Clock\AutoDST". Can you still check this value on the devices which switched DST?
Network plugin is generally disabled through HW. AutoDST is set to '1'
The four devices which swiched on 3. November are in "Pacific Standard Time" (see HKLM/Timezones/)?
The time zone of the other is different from this value? I just read the "Japan Standard Time" has no DST since 1951.
All devices arer configured the same way at production, they do not have access to the time settings because we run in kiosk mode! There can't be any difference, but I do not have access to these devices in Japan :-(.
From your previous answers:
>> All devices arer configured the same way at production
>> AutoDST is set to '1'
I can't believe this. If this is right you should have problems world wide. For example DST date in europe and US are different also some states does not have DST at all! But all devices are in the same time zone. So for me it is obvoius you do anything in Registry or code.
>> but I do not have access to these devices in Japan :-(.
<< Is it possibel to reproduce the issue in your office? What happens when you do several transitions from "Nov 2nd or 3rd Nov" to later date? While power and power off.
