Maybe it's not malicious activity? Maybe there's something wrong with some piece of software being used?
For example, I have a number of S1s running through a Stratum proxy. How can I verify it's properly feeding random work to all the ants, and half of them aren't working on the same thing the other half are working on?
M
Would you mind sharing what stratum proxy you are using? Version?
I've tried running my S1's through BFGMiner 3.10 and I receive 100% errors. I've seen other folks with the same issue