Error 131079:6 - Earth DLC won't download

What have you tried?

First steps would be to wait a few moments and try again.

Perhaps a reboot.

Do you have any networking diagnostics tools?

Task Manager has a rudimentary one, you can have that running and click on the Networking tab, start the download and watch for spikes in Bandwidth.  That would give you a clue on how far you are going.

This thread seems to have solved it:

http://social.bioware.com/%20http:/social.bioware.com/forum/Mass-Effect-3/Mass-Effect-3-PC-Technical-Support/Error-1310796-13881107-1.html

Basically, use an older version of Origin to download the DLC.

I tried several approaches:

1) Restarted Origin several times

2) Rebooted

3) Reinstalled Origin

4) Added Origin in antivirus\firewall exceptions

5) Deleted the game

Only the last one showed some results: I managed to get Earth DLC installed but now the problem moved to Extended Cut, Leviathan and Resurgence DLCs.

As for the network activity, I looked it up into the Process Explorer, and it seems that when I push the download button Origin opens TCP/IP connection (or two) and after that shows no activity.

Could you please advise where it is possible to download earlier Origin version?