Avalon 921 Socket Connect Fail => Connection refused

[Kuronega]

Hi, I am new to this mining thing, I hope you can help me with the following problem please:

[Firmware Version] => Avalon Firmware for avalon9 - 20190301
    luci: 815f8ca
    cgminer: a60adfc
    cgminer-packages: 1714e12
Socket connect failed => Connection refused

Things that I think it might affect:

1) I have the miner connected to a 110V supply with 10Amps and around 1200W to 1600W (I'm not quite sure). It is a bitmain APW7 120V/240V 1800W supply.

2) Problems with the firmware, although I already tried to reinstall the firmware more than 10 times on a rpi 3, it was getting the default ip(192.168.0.100) without internet connection, could it be a problem of assigning a static IP? I tried to put it in DHCP but I could not find the IP to enter the page.

thanks for your help.

[NotFuzzyWarm]

The A921 requires a PSU rated for at least 1,800w and 2kw is preferred. No Bitmain PSU will deliver that when fed only 110VAC, the few that even run on 110v top out at around 1,200w. To provide their full power rating the PSU's require being fed 208-240VAC.