I've been having the same issue as a few others since the new stratum server came online. As I write this, two of my 3 GPUs are idle while the third is hard at work. They idle for between 10 seconds and 5 minutes, which is ridiculous. What can I do to fix this?
My current CudaMiner command:
"C:\Miners\cudaminer.exe" -R 1 -C 1 -d 0 -a scrypt -o "stratum+tcp://uswest.wafflepool.com:3333" -u [address] -p x
I don't have much mining power (600kH/s) so I can't afford to have them idle for so long.
Most likely caused by a coin switch, i could hear it when i mined with GPU's when we switched coin, cause the fan would lower in speed because of less use.