In some cases depending on how the security software is setup along with User Account permissions can cause issues with what has been described in these posts. One thing you can try is forcing access to allow the Garmin Core Services to be allowed through to the internet. These steps may help correct some issues that you guys may be having.
1. Press the Windows key+R
2. Type "services.msc" and press Enter
3. Locate and right-click Garmin Core Update Service
4. Click Properties
5. Click on Log On tab
6. Select This account
7. Type "Network Service" in the Account field
8. Remove all text from both password fields
9. Click Apply, then click OK on the next three prompts
10. Right-click Garmin Core Update Service and Click Stop
11. Right-click Garmin Core Update Service and Click Start
If you have tried the above steps and nothing changes, and you have logged in as an administrator account disabled security and nothing changes you may need to use a different machine to perform the map update. Some third party program or feature on your computer is blocking the Garmin Express software.
Mike
Thank you Mike! That did the trick ... but why was this necessary when we changed nothing on our system? :/
Anyway: Thanks for your help!! Great work!
And for german Users:
Der Account-Name auf einem deutschen Win7 (und evtl. auch Win8) lautet "Netzwerkdienst". Also statt "Network Service" => "Netzwerkdienst".