We have been able to identify almost all of the low-luck miners and have taken a number of steps to mitigate the issue. One of the most important steps was to suspend service to Nicehash rentals. Another, which we started yesterday, is to require miners to mine with us for a period of time before they can statically mine very difficult coins in pay-per-share mode, since it takes longer to identify low-luck miners when the "c=" password argument is used in full pay-per-share mode. There are only a few coins affected, like bitcoin and litecoin. When miners affected by this restriction attempt to connect, an authorization error occurs.
The ultimate solution for the error is simply to mine for a little while until enough money has been earned for the system to verify you are not a low-luck miner. Here are some ways you can do that:
- Mine in dynamic FPPS mode, which switches to the most profitable coin and which will always be the most profitable mining mode. Just remove all of your password arguments, except perhaps the "n=" and "o=" arguments if you want to name your miner.
- Mine static coins in solo mining mode. Here, you can use "c=[coin] m=solo." You can still solo mine bitcoins or litecoins if you want to try to hit the jackpot with a block-finding share.
- Statically mine an easier coin. Easy coins can be statically mined in FPPS mode, using password arguments like "c=Digibyte."