I have this problem.
I have bought the Early Access-Deluxe-version + boxed version (these are 2 different keys!)
Last week I got the box. After installing the full version I can only play to then end of level 2. Lev dialog is grey and I can't cross the bridgle.
I can't redeem my Code ingame. Message: -> Ubisoft Servers unreachable.
On the other hand UPLAY accepts the Code in the Uplay Starter. I can download the sound files for example.
I don't want to hack game files. Please find a solution for this fast.
PS:
I deinstalled Might&Magic X (Early Access version and the Deluxe Version) then reinstalled the Deluxe Version -> same Problem.