anyone else also losing hashrate in the nvidias 1070??? is there a fix so we don't need to push power/core in the cards?
i described so often. It is the same as with AMD R9 290/ R9 390. You will loose hashrate after every new epoch.
and is there a fix to it?

There is nothing to 'fix' because theres nothing wrong with our gear, it's simply caused by the epoch size. Soon, most 4gb gpus/asics will not work at all.