Doesn't solve?

[Oax]

Hi! I am pretty new to mining BTC, atm I have 2 miners that are working pretty damn slow (15-30MH/s), one is fine and solves algoritms normally, but the other one just runs at 18MH/s without solving anything  I really don't know what the problem could be, please help! 

P.s I use 50btc.com's pool togeather with 50miner. 

[byt411]

Hi! I am pretty new to mining BTC, atm I have 2 miners that are working pretty damn slow (15-30MH/s), one is fine and solves algoritms normally, but the other one just runs at 18MH/s without solving anything  I really don't know what the problem could be, please help! 

P.s I use 50btc.com's pool togeather with 50miner. 

First, that hashrate is useless, you will spend more on electricity than what you earn.
Go to the site, and check if they are at the lowest difficulty possible.