I just installed on a MSI laptop running Windows 10 Ver. 1803 with a gigabyte internet connection (960mps upload 950mps download). Every time I start up the application, it immediately displays a dialog box stating "Internet access failed" as you can see below. Clicking retry does not help as it simply pops up the same dialog box again, clicking cancel shuts the program down. Clicking ok simply allows the program to run in offline mode which is not what I want. enter image description here

  • Do you happen to have any firewall software active that could prevent the connection?
    – zovits
    Sep 16 '19 at 8:17
  • I have the same issue with the latest version of LDD... Sep 16 '19 at 10:02
  • 3
    Though it is unlikely the cause, please remember that LDD has reached its End of Life and is no longer actively supported by LEGO. As a good alternative, you can download Stud.io 2.0 from Bricklink.com
    – Phil B.
    Sep 16 '19 at 12:33
  • I do not have any firewall settings that would stop this connection. Note: Mac version 4.3.11 does not have this problem. Both computers use the same router to the net and use the same firewall settings.
    – wombat712
    Sep 18 '19 at 4:22
  • I will look into Stud.io 2.0 from Brink link. My thanks to all that answered this post.
    – wombat712
    Sep 18 '19 at 4:23

Quoting from Lego's LDD page:

Sorry. We don’t support LDD version 4.3.10 anymore.

If you still use version 4.3.10 you will experience errors when launching the application.
You can still use “offline” mode if you wish. We urge you to update, use the download link, and install free application for Windows PC & Mac OSX.

There is nothing wrong with your computer, or your internet connection (and it is not just you). LDD will still function normally, albeit in "offline mode."
LDD is now past its end of life, and Lego apparently does not care any longer about collecting usage data on LDD.
The "Internet access failed" message is because LDD can no longer reach a Lego server ( LDD "phoned home" every time it was started. Now because it can not reach its home server LDD generates this "Internet access failed" message and will only run in offline mode. Apart from spoofing the replies LDD is looking for there is no way to run LDD in online mode any longer.

However, seeing as how Lego shut down the DesignByMe service you are not missing much (if anything) by running LDD in offline mode.

  • I'm confused. I just download v4.3.12 from that site. So it seems like the product overall wasn't at end of life as at the time they put that message about v4.3.10 up, and if it is at end of life now, it's weird that they still offer the 4.3.12 download and haven't updated the message to reflect the product overall is no longer supported. Edit And lol, Help|About says it's v4.3.11
    – Sepster
    May 17 '20 at 4:53

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