Hello!

It was working fine.
Then I update it to 0.15.1 from 0.14.x and it doesnt recognise blockchain that is already on my harddrive(folder blocks 16x gb, not in a default folder, but on a separate disc).
It tries to download the whole blockchain again, but doesnt succeed as well(connecting to peers for hours with no visible progress).
I tried to use -datadir= and reinstall the client. Doesnt help even though it sees my wallet.dat(I can see my addresses).

What should I do to fix that?
TIA!)