Hello! Any alive pools?
https://pool.sumokoin.com are banning my IP or I get shares rejected.
xmr-stak for CPU mining just say my IP banned
xmr-stak for AMD says I`m rejected shares(low diff), but I`m using 5555 port for hi-end hardware(7x470).
Probably you didn't update the software.
Visit the pools' list after updating it.