@OP, is this a new miner directly bought from Bitmain or was it bought used (and from whom)?
If bought used then this is a prime example why it must be said to ALWAYS reset/reflash ANY used miner because the the world is full of assholes looking to steal from anyone they can...

The A921 painfully proved to them that the 7nm node process is just not ready for prime time yet. Too expensive with results that are too variable and I expect it to remain so for at least another 6 months. With Microbt nailing it on the 16nm node Canaan made a wise choice taking a step back to 16nm for their A10.

And each A8 has an optimal diff far lower than 65k. The single 841's I have running in various locations have a diff of between 7.5k and 8k. What the pool cares about is shares-per-minute and they want to keep the I/O bandwidth low as possible. At Kanopool the target is 18SPM. Sending many more (lower value) SPM than is needed just uses more resources at the pool end while giving the same end result.

As an FYI, unless you have a very specific reason for setting diff it is almost always best to let the pool decide what diff is used by your miner(s).

Unless there is a problem it is best to NEVER fiddle with it. If it ain't broke, don't 'fix' it. That said, AFAIK you have to go directly through MicroBT support to get updates.

Um, try reading how to setup an Avalon - any Avalon... There are more than enough reviews of them here. That is not a 'hub' it is a RasPi controller for the miners...

That is one distributor, the other is Pangolinminer. I've used Pango many times for purchasing the M10's. Very good company but ja that long of a lead time for the whatsminers sux big time.

The fact that they say "Bitcoin miner" and "Windows" in the same sentence screams SCAM. BTC CANNOT be mined with a PC. Period.

Read 1st time/small miner guide here Primary point is the quote from -ck.
In short - unless you are mining altcoins, forget it. If you want to mine alts, then this is the wrong area as this is the Bitcoin-only area.

@OP, Wrong area and have asked the mods to move this. Questions (and answers) regarding reputation and scams belong in one of the child boards at the top of here.

Which historically is the major problem with eBang gear. Many folks in the Forum have reported getting zero support from them and AFAIK there are zero reports of anyone being happy with them. That is why I and others avoid eBang like plague.

Good luck figuring out what is wrong.

That gives us nothing to work with. Where the seller lives and country of origin means nothing. WHO is the seller or what is the company name you are asking about?

One big enough to handle the amount of power you are using. That in turn depends on your power line voltage, if using 208v then the 40kw you mentioned = 192.3amps feeding the circuit breaker panel. That gets split up depending on how much power each individual miners uses. For s9 and such (around 1,250w each) you can use a 15A outlet to power 2 miners.

You need to work with a licensed electrician to get the proper power outlets and circuit breakers wired per your area codes. If you do not do this for a living DO NOT just follow internet opinions about wiring. The risk of electrocution or fire is too great.

If you have free electric ANY miner is good. The question then becomes how much free electricity do you have: just a few kw or more? Please do remember that miners are hot and loud. Can you deal with removing the heat from where the miners are? Please ref the 1st time/small miners guide.

Patrike usually only adds features if someone requests it. Ask him about it in the Awesome Miner support thread.

re: the ventilator fan, Intereisting bit in the manual (and yes OT but) "This fan utilizes Smart Flow microchip technology that monitors the static pressure in the system and speeds up or slows down the rpm of the fan depending upon the amount of resistance within the ducts. This feature allows the fan to perform as rated and avoid potential installation issues."

So within reason, the CFM you select is what it delivers. Nice touch but no mention of max duct length...

You need to provide more details:
Is the miner new or used?
Where did you get the miner - direct from Bitmain or a reseller?
What kind of PSU are you using?
Screen shot of the GUI cgminer status page.

If the PSU is a known good one and miner is new then contact Bitmain or the reseller.
If the miner was bought as used - you may have bought a dud. Contact whomever you bought it from.

Um, perhaps read the 1st post where the miner is described?

No tweaks are possible with an ASIC-based miner because the SHA256D algo is hard coded into the chips and cannot be changed.

Oh and fyi these days 'typical' ASIC-based BTC miners run well over 13THs and the latest run over 70THs.

AFAIK even if the miner does not hash from bad controller or hash boards the miner GUI should still show the pool(s) as being alive because they did connect. If the GUI shows the pool as dead check for the spaces at end of addresses.