The difficulty is to high for 2 minute blocks at 30 ksols
[2018-02-27 19:10:23] accepted: 7/7 (diff 146557.693), 1588.43 Sol/s yay!!! solved: 1
Dont use ccminer for equihash, use ewbf or dstm(or excavator for no fees) youll get much better hashrates