Here are some things to help you along.....
- What are "some more components" ?
- What is supplying power to all this?
- How is it all wired up? (a hand drawn sketch will do).
- Can you post a photo of the 'nrf24l01+' modules?
- Did you get the 'nrf24l01+' from China on ebay or similar? If so they are probably fake ones...
Hope this helps.....It will help other to help you too....