I had previously downloaded the original two DLC and thought they were installed. I honestly wasn't paying much attention though, as I have not really messed with Geralt's hair nor hunted down the Gwent cards. I only realized today in searching for the new DLC that I needed to activate it via the configure option in the Galaxy client.

So here is my problem. Nothing is there to activate. I have downloaded it manually and run it as well, but it still does not show up. The installs say they were successful though, but I can't find them to activate them. I assumed maybe this had something to do with the DLC bugs earlier today so I didn't think much of it until now. It sounds like things are fixed though, but my problem persists. :(

I took a stab at the repair function in the Galaxy client, and now it is saying I am not authorized and will not verify my game. I have a retail boxed copy from a major retail outlet so my version is certainly legit. I am guessing it's a server issue, but I am curious if others have run into this as well. Is this likely why I can't even view and activate the DLC? Any way to get authorized and get the DLC activated?

EDIT:
Oh. Well that's goofy. Didn't realize I hadn't "bought" the free DLC. Sorry, ignore this post. Leaving it up for others though in case they are silly like myself. Authorized and verifying install now, hopefully this will fix the rest of the issues once that is done.

I seem to have same issue as you, can you please explain what exactly you did to fix this problem?

EDIT:
Oh. Well that's goofy :)

Hehe, did you get it all figured out okay?

If not, or for others who stumble across this and need some help, basically you need to "buy" the free DLC from GOG first. This can be done by selecting The Witcher 3 in the Galaxy client and the DLC should be listed on the little news/info page on the right hand side. You can also try through the website, as I assume it works just as well.

http://www.gog.com/game/the_witcher_3_wild_hunt_free_dlc_program

After purchase, everything should work then and the free content can be toggled on and off through the Galaxy client by clicking on the game, hitting the "more" button, and selecting configure.

I wish this were all made a little more clear without having to look for support online. I just assumed all this was added to my game when I downloaded and installed it. Didn't occur to me I had to buy it.