I wonder why my Rig used to mine 1Ether in 24h and now it takes up to 38h for 1. I have moved the Rig to another place, could that be the reason? Thanks
This is normal and due to the mining difficulty rising in response to the additional hashpower being pointed at Ethereum.
As Ethereum becomes more and more profitable to mine, the additional miners make it harder (more difficult) for other miners in the network to find shares and earn eth from pools or from solo mining.