It shows me mining on slush but I have no miners pointed there...odd
Perhaps you have Slush as the fallback, and it's switched over for some reason?
Thats what I thought to and checked all 4 antminers...I have no failovers pointed at Slush currently, but it is showing my hash rate at 400gh/s currently..I switched over about 2 days ago and all blocks I worked on have been confirmed...but just odd showing me giving shares I wont complain lol
**I applied the configs and such, I even gave each antminer a reboot(before reading your comment). I thought it was some gear I got rid of awhile back maybe they didnt change the credentials,but never 400gigahash worth