Check your servers time. Could be firewall.

We see this once in a while. Normally, we'll just hit back and let it try again. 100% don't work, or once in a while?

I sit for about 10-15 minutes in the Language selection to allow DEP to kick in! Trust me its a headache trying to get to the Remote Management section! So if there is a quick workaround would be awesome!!

@larry_barrett it doesn't work 100% of the time. None of our Macs are able to determine location on our network.

Port 123 open?

@larry_barrett Can you explain what port 123 is for?

We don't block any outbound traffic. Only unsolicited inbound traffic.

I would like to see documentation on how Location Services works. I've noticed that if I take a Mac down to the side of our building which is across the street from an apartment complex, the Mac is able to determine its location and will set the pin and time zone correctly. Presumably, Location Services is using wifi signals from the wireless routers of all of those apartments to get its location. However as we move back to my part of the building, on the same floor, we lose the ability to get location, again presumably because the Mac can no longer get signal from those other wifi networks.

Port 123 should be the NTP port. If its blocked or re-routed you won't be able to get accurate time.

We get accurate time. Just not time zone. Location Services is the issue.

@Jeffery_Anderson did you figure this out at all?