Sometimes ISP blocking certain PORT, you can try this..

-Download Security kiss tunnell, RUN it.. klick CONNECT..
-Now look on http://www.canyouseeme.org/ that your IP.. you can see PORT on Security kiss app -> change server..
-Put Security kiss tunnell PORT on http://www.canyouseeme.org/ PORT then klick check port..
-If success copy IP and PORT change your 8bit.conf masternodeaddr=YOUR_IP:YOUR_PORT,  restart wallet
-Go to consol type masternode start