Have you tried to factory reset the miner? If not try to reset it first it might enable the ssh back.
You can follow the "3 ways to factory reset the miner"
Topic: Antminer S9 March 4th, 2019 firmware experience? - page 3. (Read 1214 times)
Hmmm, have to think about this. I actually changed the default pools (which requires SSH) PRIOR to upgrading the firmware, so perhaps not. Most of these machine have been unplugged since last November and had old pool choices. Knowing the machines would be rebooted when I changed firmware, I elected for change the pools first. So its possible SSH has been disabled since upgrading.
Rebooted does NOT enable SSH. Reverting via the web interface also fails after a few moments with a "Cannot find signature" error, at least with the 1117 and prior versions. It will let me reflash the current version.
I've notified Patrik over at Awesome Miner, since this seriously cripples his software with S9s. Hoping he has come across this and has a work around (like they switched SSH ports or something). Hmmm, a portscan of a miner could prove interesting. Back with those results later.
Update: Only 3 ports now open:
80 - HTTP web interface
4028 - Standard API port for monitoring
6060 ???
Bitmain ticket opened.
Rebooted does NOT enable SSH. Reverting via the web interface also fails after a few moments with a "Cannot find signature" error, at least with the 1117 and prior versions. It will let me reflash the current version.
I've notified Patrik over at Awesome Miner, since this seriously cripples his software with S9s. Hoping he has come across this and has a work around (like they switched SSH ports or something). Hmmm, a portscan of a miner could prove interesting. Back with those results later.
Update: Only 3 ports now open:
80 - HTTP web interface
4028 - Standard API port for monitoring
6060 ???
Bitmain ticket opened.
So for a few hours you were able to SSH and then it went away?
Are you not able to revert firmware? or did they just remove the previous firmware from the site so you no longer have it?
If you reboot does SSH come back, as in is it a time lock? The S15 that I tested didn't have the capability to SSH in the released firmware, the code and programs to SSH were there just not enabled. Since we had no access to the systems we didn't go forward with more S15's and since the T15's were so similar never even thought of getting those. If this is the case it's possible they are trying to reduce the control users have over their own systems.
Are you not able to revert firmware? or did they just remove the previous firmware from the site so you no longer have it?
If you reboot does SSH come back, as in is it a time lock? The S15 that I tested didn't have the capability to SSH in the released firmware, the code and programs to SSH were there just not enabled. Since we had no access to the systems we didn't go forward with more S15's and since the T15's were so similar never even thought of getting those. If this is the case it's possible they are trying to reduce the control users have over their own systems.
Any problems SSHing into your boxes? Other than 2/~90 I had problems with last night, all allowed it yesterday, but this morning, they are all blocking it. This is hobbling Awesome Miner.
I now have all S9s working at a friend's place and unfortunately have no direct access to them, so can't test it out, but I don't remember testing SSH after the firmware upgrade since I don't really need it
Been running this fw in 21 miners for 1 month and no issues so far, I recommend it 
Any problems SSHing into your boxes? Other than 2/~90 I had problems with last night, all allowed it yesterday, but this morning, they are all blocking it. This is hobbling Awesome Miner.
Based on 12 hours of running, I'm happy to confirm the need to reboot is gone. I'm not seeing ANY dip in performance over that time period.
However, the disabling of SSH functionality, and apparently the ability to downgrade, even through the web app, is rather concerning. The Bitmain page indicates this release:
Quote from: Bitmain
2.Add security firmware feature, enhance antminer security ability
I suppose this is what they mean by that.
Been running this fw in 21 miners for 1 month and no issues so far, I recommend it
This isn't any suggestion but more of a question on the other S9's. Does ssh work one the others?
Yes, its works on all but two, so (88) Yes. (2) No. This prevents Awesome Miner from having configuration access btw. And since I can't SSH in, I can't manually add access.
Update: This morning all the upgraded machines are refusing SSH access, which means I have no way to remotely poweroff, and tools like Awesome Miner can't change pools.
This isn't any suggestion but more of a question on the other S9's. Does ssh work on the others?
Think I read on the Bitcoin Support page that Low Power Enhanced mode implies Low Power Mode.
Having a bit of a problem with a few machines that previously were back leveled and set with fixed frequencies. Those don't work well with the new system.
Having a bit of a problem with a few machines that previously were back leveled and set with fixed frequencies. Those don't work well with the new system.
ok, updated about 90 machines, most went without issue.
ONE is running at a fixed frequency, 600 MHz, and I can't seem to get it to down speed even though Low Power Enhanced Mode is toggled. Any suggestions? Should I just manually downclock it via minerAdvanced.cgi?
Have another one that I can't SSH into. The web interface works, but SSH does not.
Any suggestions?
these results look great for guys who have a problem with power cost, have you tried disabling "Low Power Mode" while keeping "Low Power Enhanced Mode" ? i tried and nothing changed for me, so was wondering if that's the same case for everyone, i tried on 1 miner only tho just for fun.
ok, ran tests on (5) different known good 14TH S9s. Low Power Mode with Low Power Enhanced Mode provides about an 11% improvement in J/Th, although at a huge drop in performance.
That said, for folks like me with a lot of S9s powered off, its a big win. I can handle a ~32% performance hit, I'll just plug 32% more miners in!
That said, for folks like me with a lot of S9s powered off, its a big win. I can handle a ~32% performance hit, I'll just plug 32% more miners in!
being running on some of my gears and everything seems great so far.
temps wise = better
stable no random restart
The Enhanced mode comes with it by default so you have to disable it if you don't want it
it brought the hashrate down to 9th to 9.7th but temps were super low.
i didn't measure power consumption but assuming the temps drop so i think power wise there should be a bit of improvements.
TL;DR ; I find the March 2019 firmware to be good and stable overall.
Hi all.
Bringing some S9s back online and noticed the Bitmain site has a Antminer-S9-all-201704270135-autofreq-user-Update2UBI-NF.tar.gz firmware release posted.
Google seems to be failing me on any commentary however, and its been over a month.
I'm coming from the 1117 release and was curious what peoples experience has been like. Is it recommended? Website claims the reboot problem has been fixed, which would be nice.
See there is a newish "Low power enhanced mode" (came out in December firmware) that really seems to underclock the box. Only one review online that I've found so far though.
Bringing some S9s back online and noticed the Bitmain site has a Antminer-S9-all-201704270135-autofreq-user-Update2UBI-NF.tar.gz firmware release posted.
Google seems to be failing me on any commentary however, and its been over a month.
I'm coming from the 1117 release and was curious what peoples experience has been like. Is it recommended? Website claims the reboot problem has been fixed, which would be nice.
See there is a newish "Low power enhanced mode" (came out in December firmware) that really seems to underclock the box. Only one review online that I've found so far though.
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