Greetings and Thanks for reading:
I bought a used Antminer S7 primarily to learn about mining. I understand that it is unlikley to prove profitable.
I plugged it in and connected to network. All seems fine and it shows up when I login via IP address and for a good 20 minutes seems to hash fine. Then the flashing green light stops (no red light appears) and the miner is no longer discoverable in the IP Address search of my network.
Any advice on what I should be checking?
Thanks again!
There are 3 possible problem of your antminer s7 this is just my own guess.
1. Hashing board is too hot that is why its stop
2. Maybe your PSU is not giving enough power and your miner stop hashing.
3. Your hashing board is shorted
For solution or troubleshoot about this problem you can find it in bitmain support here
https://support.bitmain.com/hc/en-us/articles/220872007-Possible-problems-for-Antminer-Troubleshooting-for-S7-S9-L3-