"Can anybody tell me what can I do?"
Sure. How about elaborating on "I can't configure them".
Not trying to be an ass, but you have given us zero info to help you diagnose your problem.
Have you read this thouroughly:
How about getting back with more info, ie:
1. what you have tried so far
2. what is working
3. what isn't working
4. any error messages you get along the way...
Help us to help you.