mount.cifs: permission denied after upgrading to 20.10

I have a NAS that up to version 19 I could mount at startup through fstab with this command:

//192.168.1.99/data /home/user/data cifs username=uname,password=upwd,uid=user,file_mode=0660,dir_mode=0775 0 0

After having upgraded to 20.10, this has stopped working, and a check using mount -a returns: mount.cifs: permission denied.

I am still able to mount the drive using sudo mount -a, but how can I modify fstab to make it work again?