My friend just gifted me his Bitmain S3 and S3+ miners.  However, I can't seem to get into the settings on them, as I assume the settings are still configured by my friend or he's bricked it

I can't see the IP address of the miner on my network, but when I do type in an IP address in my browser, I get a page loaded with the following


Moreover, its jsut a red light next to the ethernet/RJ45 plug that stays on.

**How can I factory reset the devices?**