But now I draw the line at 12 hours; I don't solomine if my estimated average time between blocks is longer than 12 hours but I solomine everything else if I can.
Its the same for me, I get an email through to my phone whenever i hit a block so its always exciting when my phone beeps incase its a block ive hit but its been too long now. I just cant switch it off yet or selse it will feel like 6 weeks have been wasted and ive got it in my head that because its been so long im bound to hit a block soon.
I also solomined some Eth a few months back but I stopped because Geth just randomly lost sync. It gave no errors, nothing and I was still mining but it was not getting new blocks from the network. When I restarted it it syncing but eventually it dropped again. And it had dozens of connections. Wasted quite some time that way.
It's probably been fixed long ago but it's worth checking that everything is working.
I had the same problem. I had to restart the geth.exe every few hours. The ethermine continues to consume a lot of power without mining the new block.