hi, I switched to Azureus and port 78000... however my router doesn't allow me to set that port, so I just let the Azureus to choose the port for me... the first time i test the post (something like 54230), it said ok.. but after like 1 minute when I saw the Dl speed drops, I tested the same port again... it gives me the NAT error... i m very confuse now...