problem getting Id from GW (parent)

[siod]

Hi all,

I´ve built a NRF24l01 quality meter from AWI, unfortunately I don´t get the node connected to my Gateway. This is what my gateway tells me on the serial output:

0;255;3;0;9;TSP:MSG:SEND 0-0-250-250 s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=ok:0
0;255;3;0;9;TSP:MSG:READ 250-250-255 s=255,c=3,t=7,pt=0,l=0,sg=0:
0;255;3;0;9;TSP:MSG:BC
0;255;3;0;9;TSP:MSG:FPAR REQ (sender=250)
0;255;3;0;9;TSP:CHKUPL:OK
0;255;3;0;9;TSP:MSG:GWL OK

As far as I understand there is a radio connection, but the node and the gw don´t want to talk to each other. Could anybody help me to understand what is going wrong here please?

edit: I must mention that it occasionally works, so it must be wired correctly...

edit2: Output of Node Serial monitor:

Starting sensor (RNNNA-, 2.0.0)
TSM:INIT
TSM:RADIO:OK
TSP:ASSIGNID:OK (ID=100)
TSM:FPAR
TSP:MSG:SEND 100-100-255-255 s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
TSP:MSG:READ 0-0-0 s=0,c=0,t=0,pt=0,l=0,sg=0:
!TSP:MSG:PVER mismatch