Anyway I deleted the peers.dat file and still same problem
Best is then to use the bootstrap from the forum and delete the content in application folder EXEPT the wallet.dat file and copy the content of the bootstrap in the application folder.
Also I can't find a .conf file in the Application support in Mac.
That .conf file you need to create yourself( or if you prefer i can upload one for you) just copy the code that BigJohnson provided into a a new textfile and save it as netcoin.conf (not as .txt!) in the application folder.