Data transmission between PICs with bluesmirf gold is lost

I am doing transmission between two PICS, first I tried with cables and it was alright, then I used two bluesmirfs gold as serial cable replacement but now I am losing data, the baud rates in the PICS and the bluesmirfs are the same, but I don’t know, maybe they are not exactly the same. I was wondering if someone can help me.

Do I have to do some extra configuration in the bluesmirfs, I have only changed the bade rates to be the same in the PICs. I also have a conection between RTCS and TXCS in the bluesmirfs.

Thanks!