app_p2p_DTR example

[r-bt]

I'm trying to get the app_p2p_DTR to work. I've successfully built this and flashed four Crazyflies with ids 0,1,2,3 (which I've verified with DEBUG_PRINT). However none of the Crazyflies are reporting that they receive data. I enabled // #define DEBUG_DTR_PROTOCOL and I get this in the cfclient console:

TOK_RING: TOK_RING: 
PROTOCOL TIMEOUT!
TOK_RING: TOK_RING: 
Resetting protocol
DTR_HANDL: DTR_HANDL: Radio timer not running

When I use the app_peer_to_peer example it just works successfully once I flash

I wanted to check am I missing any steps?