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Windows 10 time synchronization failed

When did this bug start for you?

I think you've been hit with the milennium bug ;)

Twintig jaar oude millenniumbug sloeg op 1 januari opnieuw toe

Toen Tweakers slechts twee jaar oud was, vond een van de grootste computercrises ooit plaats: de beruchte millenniumbug. Door hard werk van duizenden programmeurs wereldwijd bleef de voorspelde catastrofe uit, maar niet helemaal: zelfs in 2020 hebben we er nog weleens last van.
tweakers.net

Has to do with 32 bit integer and the number of seconds since 1-1-1970. (Unix time) and Windows uses that too.
 
P4-630 said:
It works but only via my mobile phone tethered via USB to my PC and using my phone's 4G.
View attachment 141783

Just my PC via WiFi it isn't working.
Click to expand...
I've had the same issue twice with my Desktop PC and that is connected via Ethernet.
My solution was to manually adjust the time as all the time zone settings were already correct.
Oops, just noticed this has been necroed.
 
I'm having this exact same issue on my Dell G7 laptop (using ethernet cable directly to router).
I has been a full year using it (brand new), and probably realized the issue in june or july/2020 due to noticed time difference between the PC and my phone (couple of minutes).
It was bought in the US, but I use it in Brazil. I've tried using both original microsft and brazilian NTP instead (pool.ntp.br), no sucess. (and yes, I've changed the timezone)

I just tried to use my phone as hotspot (tried both wifi and USB cable) but still nothing (think I can eliminate my internet connection/router as suspect?).
Also, I have just reinstalled windows to a fresh install because I've updated the SSD to a bigger size, but same issue is still happening (think I could eliminate windows configs as supect?).
Not much suspects left o_O. Maybe bios update? Seems harsh, and if that was the cause, I wonder more people would complain. It still feels like blocked NTP packets somewhere.

Not sure what to try next. Suggestions? Meanwhile, I'm stuck with adjusting the clock manually, every other week..
 
What do you mean by adjusting the clock "manually"? Do you mean you manually set the hours, minutes and seconds manually? Or do you mean you manually tell the system to "Sync now" with the time server?
 
Bill_Bright said:
What do you mean by adjusting the clock "manually"? Do you mean you manually set the hours, minutes and seconds manually? Or do you mean you manually tell the system to "Sync now" with the time server?
Click to expand...
I manually set the hour, minutes, etc (in my case, I usually increment 2 or 3 minutes, because that's when the time difference starts to bother me).
Once it reached 4 minutes difference and I almost got late to my class zoom meeting :twitch:

Edit: just to complement the answer:
Even if I try "manually forcing" the sync update, that doesn't work. I always get an error message saying that it is not possible to synchronyze.

Arthur_Silveira said:
I just tried to use my phone as hotspot (tried both wifi and USB cable) but still nothing (think I can eliminate my internet connection/router as suspect?).
Click to expand...

Update:
On my first try (when it did not work) wifi was on on my phone, so probably phone was just rerouting wifi via wifi (my old phone could not do that, when I used it as a hotspot, it always used the 3G/4G network as internet connection).
I forced my phone to turn off wifi, while being a hotspot and it worked.
I also realized that when I have this configuration, windows uses IPV6 instead of IPV4 as I can see on ping results (sorry, its in portuguese, but i think still understandable)

Code: 
C:\Users\Arthur>ping google.com -t

Disparando google.com [2800:3f0:4001:802::200e] com 32 bytes de dados:
Resposta de 2800:3f0:4001:802::200e: tempo=75ms
Resposta de 2800:3f0:4001:802::200e: tempo=50ms
Resposta de 2800:3f0:4001:802::200e: tempo=71ms

So, I still have two suspects:
a) my router/modem/isp blocking NTP packets
b) IPV4 configs

Is still do not consider it a solution yet, because using my phone as router to sync PC clock is actually more work than adding manually some minutes do the clock.
Also, it has been a while since I last went outside, to try a different wifi network, but I will let you know when I do (and the outcomes)
 
I would be curious to know if another computer on your network has the same problem.
 
Bill_Bright said:
I would be curious to know if another computer on your network has the same problem.
Click to expand...
I see your point! My first suspect is also my network.
My wife's company laptop is locked without admin permission, not sure if I can access it's clock to check if it is updating (they removed so many features, I could't even discover wich gpu it has, can't access device manager).
I don't remember having this issue before when I used my older desktop, but I will try turning it on and check. Great call!
 
If W10, just right-click on the clock in the System Tray, select "Adjust date/time", then click on "Sync now" (if not grayed out).
 
UPDATE:
Now I'm pretty sure it is my router blocking the packets.
- on my old desktop, connected throuhg ethernet cable to same router, time was not synchronyzing as well.
- when I moved the cable from the router directly to the modem, it worked, and time sync'ed

Now I will try opening the NTP port on my router (I think it is UDP 123). Wondering if that could be a security issue..
If that work, I will update this post including router model, in case others might have the same issue
 
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