minecraft.net is working fine. Also somehow Vanilla disappeared from the loader while it's still enabled in modpacks.yml
EDIT: Deleting my lastlogin file seems to have fixed the problem. Vanilla is back too.
Just for the dev's: i was using two accounts, maybe that was related to it.
It then updated Technic SSP, and it seems industrialcraft-2-client_1.64.jar was renamed to [1]industrialcraft-2-client_1.64.jar, but the old file didn't get deleted, this was causing errors.
EDIT2: and the second time i started the launcher (This time with only a single account added to it), it refuses to connect to minecraft.net again, and Vanilla is gone again.