[Investigation] DLC Download Issues - please re-test download

When i try to download the DLC from the in game Downloader, i get the download failed message on all DLCs i have bought.

1) Win 7 64bit fully updated as of today (29th Oct 2013)

2)  DAO retail, added to Origin and downloaded and installed the digital version.

3) Run the game through the Origin client.

4) Origin is installed to the C drive which is an SSD. DAO is Installed to the D drive which is a HDD. Have alsos tried it with DAO installed on the SSD.

5) Cannot download the DLC  from the ingame downloader. Get the download failed message.

6) DLC shows in the BSN.

7) It installed when downloaded manually from the BSN, but still shows in th ingame DLC download section as failed though its installed manually correctly.

8) All DLC doesnt download from Ingame DLC downloader.

9) All workarounds tried. Ingame downloader still comes up failed.

10) Below:

• I bought the retail version of Dragon Age Origins game on release day 2009. On October 28th 2011 i added the CD key to my EA Origin account.
• I updated my PC recently and downloaded nd installed Dragon Age Origins from EA Origin. So it will be the digital version. (NOT ULTIMATE)
• I then patched the game to 1.0.5.
• I have tried all the possible solutions in the http://answers.ea.com/t5/Dragon-Age-Origins/SOLUTIONS-UNAUTHORIZED-DLC-or-MISSING-DLC/td-p/470466 sticky thread including flushing my DNS cache. None of them fix the issue of the download failed.
• I tried installing from the retail disc but it has the same DLC download failed issue.
• I have tried starting the game in compatability and admin mode. Same issue.
• DA Origins, DA Origins Launcher and DA Updater are all allowed through the windows firewall.
• Have tried disabling the firewall and avast antivirus. Same issue.
• The DLC shows under the Download Progress tab (middle) and tries to download but goes no further than 0% and then turns red and says download failed.
• My PC uses Windows 7 64 bit with all windows updates. i5 2500k CPU, GTX670 GPU, 8GB RAM, 250GB SSD, 1TB HDD.
• My loaction is the UK. Using the UK keyboard settings.

Hopefully the issue can be fixed sometime. The in game downloader worked fine for years.