I'm on Windows 10 with GUIminer, I want to mine mine on the slush pool, but every time I enter any host address, I saw that it didn't work on the slush pool. I entered the correct login for my miner and on GUIminer it says that the target computer has expressly rejected this. I also have Bitcoin Core and I haven't completed the download. Bitcoin core and GUIminer are in trouble on my external drive?
So what's the problem and how can I fix it please. Thanks a lot.