Hello. Today i start mining etherium. I have 24*280x and in first 3 hours my hashrate was 0.5-0.55 G/h. After 3-4 hours hashrate go down to 0.15-0.2 G/h. I check all my 6 ring all perfect. Each show me about 80-90 M/h. What was wrong? Somebody have the same problem? Thanks!
https://www.nicehash.com/?p=miners
1NkLX58WoqSKw3cmTimeteScjghuqMC3bA