alb12:
Because with external antenna at the distant location, I have the same result.
I don't recall that you mentioned that earlier.
I must say I am surprised that you are having problems - the distances are not huge.
Is the Node1 nRF24 hidden behind something that might be absorbing the wireless signal? Or close to something else that is using 2.4GHz wireless - such as Bluetooth or WiFi?
Try the second example in this Simple nRF24L01+ Tutorial just between the devices you are calling Node1 and Node31 - i.e. no attempt at networking. If it was my project I would also try that code between Node0 and Node 31 - i.e. the two low-power units. I would also do some range tests between two units outdoors.
Which brings to mind another thought - have you swapped Node0 with Node31 in case the device at Node31 is not performing properly.
...R