nrf24l01+ issue with power supply

Hi to everybody,

I'm having a strange problem with Arduino+shield Ethernet+nrf204l01 using the power supply connection. When I have the Arduino+shield Ethernet+nrf204l01 connected through the USB cable to the PC the communication between the two tranciver is OK. While if i connect it with the power supply, the tranciver is not able to send and to recive any packets.

Hope someone can help me with this strange situtation

I have had similar problems, I had to clean up the power, I recall using several caps and shortening the length of the wires used between my arduino and the NRF24l01

Thanks for the answare,
I bought new wires smaller than the one that i used. I will let u know if the problem will be solved.