Hello

I am following up on this. I got great feedback from everyone.

Ultimately, I was finally able to hold down the IP report button on the s9 and then power it up while continuing to hold the IP button for 10 more seconds.

This finally worked and reported a different and correct IP address.

Actually I was about to give up, and I had to try resetting and doing this about 7 or 8 times before it finally worked.

So ultimately the machine has reported a false IP and after going thru the IP report button and re-powering it generated the true IP address.

Thanks to ALL for helping with this.

Hi Everyone,

I have an newly received s9. It's powered up and the IP address reports. When attempting to log into the machine using the IP, the Login and Password box appear as normal. However it will not allow me to login.

Login failure.

I purchased this machine new. The gent I purchased it from indicated he had tested it to ensure correct operation.

I assume this gent may have modified the standard root root login and password.

So I tried to reset the machine to factory settings by holding down the reset button on the S9 for 5 seconds.  After doing this the machine does not appear to respond. I waited 10 min and tried again to login to the IP. Login failure. again.

I tried this 3 more times with exactly same result.

Is there any other reason(s) it might not login?

I simply can't log into this Miner.  Does anyone have any suggestions?

Thanks in advance.

I thought I had the latest firmware, but I'll need to recheck that.

They are hardwired.

I will post if anything changes after checking thru the firmware.

Thanks!

Hello

I have two 741s. Each powered by 1600W PSU. I have been running them for 2 months now.

Randomly, one or the other of the two units stops hashing. I reset the power and it begins hashing again. This has occurred about 8 times since I put these on the network.

2nd item is that both of mine hash at 6 - 6.5 THS.

I must be missing something with proper setup.

Anyone have any suggestions or comments?

Thanks in advance. Merry Christmas!

Hey Guys,

It took multiple attempts and failed the first 10 times. Then it finally reported IP and that was all I needed. Now up and running just fine.

Thanks so much!!!

Merry Christmas!

Thank you Castiel and FatAnt!!

Sounds like the right answer to me. I will attempt to do what you have suggested.

I will reply later to let you know if I am successful - THANKS very much!!

Hello Everybody,

I have experienced an issue with a new S9 that I don't understand and don't know what to do about it. I hope you savvy folks can provide some feedback. So thanks in advance for any and all thoughts and feedback.
                  
I now have 3 s9 machines and 2 Avalon 741s running/mining for almost 3 months now. I've been using strictly EVGA 1600W T2 power supplies for my machines up to now. They are expensive but very stable, solid, well equipped, and provide high efficiency power operating off 120VAC.
            
My Problem: A new S9 I got recently (this machine is from the November batch or so I understand.) I have been unable to "SEE" the machine on the network.                  
                  
I connect the power supply, then connect the machine to my network via ethernet cable. So it's a wired connection to an 8 port switch, which is also a wired connection to the Internet Router I have (thru ATT). The same switch and router that my other 5 machines are working off.                   
                  
So I power up the machine and observe. Shortly after powering, all normal operating lights on hash boards, and small LEDs near ethernet port come on and indicate normal operation. The s9 Machine itself starts to make that "signature" s9 noises that are typical once the machine is powered up, on the network and begins hashing. (In other words it sounds identical to my other working s9s). HOWEVER, the machine DOES NOT appear on my network, at least from what I can discern. It does not show itself on the router or the switch. I'm searching for an IP address to access the machine, but there is no IP or any network signature of any kind.                  
                  
So I am at a loss. From my perspective, this s9 sounds like it should, and has it's external LED indicators appearing normal -- just like a machine hashing / operating normally. BUT the machine is not identified by the network. No IP address or any other indication of it's presence on the network.                   

In the process of trying to eliminate all possible connection related problems, I changed cables, changed power supplies, changed my switch, changed my powerline ethernet extenders, changed my router. No response of any kind and all other devices continue to operate normally.                  
                  
My own speculative conclusions are:                   
1. either I don't know how to dig or see deep enough to find out if the miner REALLY IS on the network, OR                  
2. The IP address of the machine is somehow masked?? Is that possible?                  
3. The machine simply has some unknown faults and I need to have it serviced.

I have the impression that the machine operates as it should. But somehow is not seen on the network, but, but I have not been able to identify the machine on my network. I have not been able to get into the machine's software/firmware because I cannot see the machine's IP on the network.                   
                  
I am definitely not savvy on networking operations. I am also only 3 months into operating these machines and I have only done minimal trouble shooting, so I am probably unaware of the typical issues that these machines may present which maybe can be worked through.    
                  
Is there an alternate means of accessing the machine?  I noticed there is a microSD slot on the machine. Can I make use of that somehow? 

Has anyone experienced similar issue?

I am hoping there is something / procedure I need to use or do to "correct" whatever is going on in this machine.
                  
I look forward to any feedback that is offered and I definitely appreciate your time and opinion!!                  

Yeah Buddy!! I'm very glad I came to this forum and thanks very much to both of you!

Getting on the right track at the beginning has been a good challenge. 

Do you fellas subscribe to the use of a 2000W power supply (as opposed to say an EVGA Titanium 1600W psu)? The reason being in order to operate slightly lower along the most efficient part of the psu load curve. Any thoughts about that or Power Supplies in general?

Have a great day!!

Hello All,

I am just beginning in Bitcoin mining. I am in the process right now of purchasing 2 ea s9 computers and power supplies.
As I look at the many distributors that I can purchase from, it becomes clear that if you purchase from a distributor based in China the price is less than half as much - then purchasing from an Amazon distributor.

Why such a pricing disparity?

I asked a friend and he replied saying those low prices are too good to be true. He went on to say that Bitmain has been sued over selling S9 mining computers that somehow shave off some of the bitcoin production - which Bitmain keeps.

So my question is this: Is it safe to purchase an Antminer s9 machine from one of the Chinese distributors for somewhere between $1100 - $1500? (Amazon distributors are selling the same machine for $3000). Does ANYONE have any knowledge or experience with this??

Thank you!!
BDF