NRF24l01 pairing problem

Hi
I am trying to connect 2 Arduino Uno wirelessly, for now I am playing with the nrf24l01 modules but I am having big problems.
after experimenting with the 433mhz modules before I decided to try the nrf24l01 because the 433mhz does not work at all, i am getting enormous interference ( if anybody can help with this also let me know)
So now i have 4 nrf24l01 modules and 2 arduino unos (they both should be original but 1 registers as Arduino genuino Uno and the other as Arduino genuino mega or mega 2560, the both look exactly identical also all prints on the PCB)
I tried all solutions I could find online, nothing works, it seems the nrf24l01 modules cant find each other or something. I added 100uF caps, no difference.

the ping pong sketch only gives me: failed, response time out.
see screenshot
the addresses look different but I dont know how to change this, in the sketch it is the same.( same sketch in both arduinos)

please help
thanks

because the 433mhz does not work at all, i am getting enormous interference ( if anybody can help with this also let me know)

Did you try the VirtualWire or RadioHead libraries? If not, give it another go.

I got my nRF24s working with this Tutorial

I also posted a pair of working programs here

...R