Thanks for your response, yes I am looking at the dashboard. I have two units, one reports the correct hash rate all the time, but the other drops down to half and stays at half the rated speed until i cold reboot(no stale/rejects reported). I do understand your explanation about average hash rate being reported on the dashboard. But, I think my issue may be something else. I wanted to confirm that it is not related to minimum difficulty being set automatically or hardware related.