[Sticky] What should new miners learn first before buying hardware in BTC.com?

For anyone still troubleshooting this, the most useful sequence I found was: confirm the wallet and worker format first, then verify the stratum target, then check miner logs, then look at temperature and uptime, and only after that start changing firmware or network settings. Doing it in a clean order saved me a lot of time because I stopped guessing and started isolating the real problem.

I had a similar situation on a smaller setup and the lesson for me was not to assume profitability or stability from one short test window. Watching behavior over a longer period gave me a more realistic picture.

My experience has been that many mining problems are not one big failure but several small issues at once. A setup can look almost correct while still underperforming because of heat, weak airflow, bad assumptions about variance, or poor monitoring. Threads like this are helpful when people explain not only the fix, but how they reached the fix and what signals pointed them in the right direction.

I ran into this after changing pool settings and thought the machine was the problem. In my case the miner was fine, but the network path was unstable and the shares started coming through only after I fixed DNS and restarted cleanly.

I think the key here is testing one change at a time instead of changing everything at once.

This is a strong SEO-style topic because it matches the real questions miners keep asking again and again.

This is exactly the kind of question many new miners search for before they commit money or hardware.

I think the most helpful answers here are the ones that explain what to check first, not just the final fix.

A practical comparison with real setup details would make this thread much more useful for future readers.

It helps a lot when people include what symptoms they saw, what they tested, and what actually changed the result.