New Antminer S9 - solid green light No ip

[rogerrodger]

Setting up new antminer s9 with new APW3++ power supplies.  About 10 of 15 have the "normal" green light stay solid and they don't connect to the internet.  Can't find them with ip scanner or through my modem client list.  Have setup a bunch of antminers over the years and have never had this issue.

Tried: different PSU, different ethernet, different switch, resetting, running for an hour+.  None of these have worked.  

Any advice?
Thanks

[VRobb]

What's the input voltage to the apw?

[rogerrodger]

220v - 14awg cables. 

[HagssFIN]

Have you tried all these reset methods?

https://enforum.bitmain.com/bbs/topics/3957

[rogerrodger]

Have you tried all these reset methods?

https://enforum.bitmain.com/bbs/topics/3957

I did 1 & 3.  I can't get access to the interface because the miners aren't anywhere on my network.  By doing 1 & 3 I was able to get 3 of 14 to work correctly

[Raymond_B]

Have you tried all these reset methods?

https://enforum.bitmain.com/bbs/topics/3957

I did 1 & 3.  I can't get access to the interface because the miners aren't anywhere on my network.  By doing 1 & 3 I was able to get 3 of 14 to work correctly

Putting that many devices on the network at once I would make sure that your DHCP pool hasn't run out of IP addresses. From there, I'd try one at a time bringing them on line.

[Sandal_Hat]

Have u tried changing different ethernet cable? That worked for myself and others. I was using a ugreen right angled cable ethernet that just was not good. In my case, it showed 2 out of 3 chains only. Changing to a good cable showed all 3.

[MinerMEDIC]

My feeling is that these miners use a piss poor implementation of Ethernet/IP networking. A sub par switch has been known to muck things up.

[HoleShot]

I hate when that happens. It sounds like a bad network cable or connection. Recently I had a fight with a network conflict where two miners were trying to live on the same address. 

I have a cellular modem I use as an isolated system to diagnose these problems. Before I thought of that solution, I just disconnected everything except my problem miner and my laptop from the network.