The first order of business in training adorable pups is training you.
Yes, before embarking on the frightening task of any obedience exercise, exorcise your mind of that cute adorable face and those eyes that can melt any iceberg in sight.
Because you'll be trying to remove habits that he is genetically predisposed with, like biting.
Puppy training biting problems are one of two leading struggles in house breaking a pet, the other one is potty instructions.
Causes and solutions to puppy training biting problems are as follow:

• Language barrier, dogs can't understand the human language and vice versa.
  Hard to teach someone who can't understand a word you're saying.
  The trick is having a consistent tone of voice with body language to match.
  
• Genetically predisposed to biting and nipping, a puppy use his mouth as tool in discovering their surroundings, his siblings and mother.
  The best solution to this puppy training biting problem is to set limitations on the degree of bite you will tolerate.
  Imitate the natural way of puppies teaching each other the lesson of biting games, if it hurts cry out and turn your back, the guilty pup is banned from the game and ignored.
  
• Puppy training biting problems include fear biting, during the course of puppyhood a stage of insecurity and shyness to new environments and unfamiliar circumstances can result to fear biting.
  At an early stage, resolve this through obedience training and physical activities that would give your pet a sense of accomplishment and increase his confidence level.
  Also letting him see the object of fear in a different light, including it inanimately in his daily life.
  Let him get use to it.
  
• Prevent puppy training biting problems caused by aggression by avoiding activities that may elicit such behaviour like pull and tug games, shun the use of physical punishment and use of cages or chains for very long periods.
  Isolation is unhealthy for dogs.
  

Resolve puppy training biting problems through patience, consistency, understanding the dog's natural behaviour and how to bridge the language gap.
Puppy biting problems take time to resolve and repetition is most likely going to be required so patience and consistency are a must.
As you probably have heard many times by know dog / puppy training is also about training you, the owner.
Knowing how a mother raises her pup is an advantage.
This will resolve key points in puppy training biting problems such as instinctive biting and aggressive biting.