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Standard User awontroba
(member) Thu 20-Feb-20 22:03:41
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UniFi AP-AC-Pro and firmware 4.0.80.10875


[link to this post]
 
The latest firmware 4.0.80.10875 for my UniFi AP-AC-Pros has bricked one, potentially bricked another, and bricked a new one. The bricking appears to break the ethernet port, which becomes inaccessible, including after a reset, power cycle and attempted TFTP session.

What happened.

I bought a new AP.
Started the UniFi controller, which reported my APs as needing updating.
Updated them, seemingly OK.

Connected the new AP to the network, needed updating from something really old.
New AP then showed as Disconnected / Needs updating, and try as I might it didn't work.
Returned to supplier for refund.

Turned off my existing AP here to move it. On powering it up, the same symptom - disconnected, unpingable. WiFi side still working, but clients cannot get a DHCP address. I will try TFTP again, with little hope.

I have disabled automatic firmware upgrades in the UniFi controller, and reverted my remote AP to 4.0.66.10832 so it should still work after being powered off.

Meanwhile, bought some BT White Disks as I really need my WiFi network!

--
Adrian
Standard User caffn8me
(eat-sleep-adslguide) Thu 20-Feb-20 22:39:17
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Re: UniFi AP-AC-Pro and firmware 4.0.80.10875


[re: awontroba] [link to this post]
 
That's not good. I've had no problem with this firmware on a variety of other access points - namely UAP-AC-M, UAP-AC-M-Pro, UAP-nanoHD, UAP-IW, UAP-IW-Pro, UAP-IW-HD and UAP-AC-LR. All controllers are version 5.12.35.

Have you tried the Unifi support forum - specifically here?

Sarah

--
If I can't drink my bowl of coffee three times daily, then in my torment, I will shrivel up like a piece of roast goat

Spiders on coffee - Badass spiders on drugs
Standard User awontroba
(member) Thu 20-Feb-20 23:40:46
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Re: UniFi AP-AC-Pro and firmware 4.0.80.10875


[re: caffn8me] [link to this post]
 
Ah, the Bright & Shiny OCD thread.
I have read it, but have not yet joined and posted.
I have just contacted Customer support.
I wonder how often power cycle their APs.

--
Adrian


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Standard User caffn8me
(eat-sleep-adslguide) Thu 20-Feb-20 23:59:40
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Re: UniFi AP-AC-Pro and firmware 4.0.80.10875


[re: awontroba] [link to this post]
 
I've power cycled UAP-AC-LR, UAP-M and UAP-nanoHD access points numerous times on this firmware as I'm using them for site surveys and haven't had any problems yet. The other types on my list have had fewer power cycles.

You should join the Unifi support forum, it can be very useful. You might see an occaisonal post from me on there wink

Sarah

--
If I can't drink my bowl of coffee three times daily, then in my torment, I will shrivel up like a piece of roast goat

Spiders on coffee - Badass spiders on drugs
Standard User awontroba
(member) Sat 22-Feb-20 00:02:14
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Re: UniFi AP-AC-Pro and firmware 4.0.80.10875


[re: caffn8me] [link to this post]
 
After many hours of fiddling, head banging and messaging,
Ubiquiti Support will accept a RMA.
Amazon have arranged it, with an advanced return refund and a Royal Mail return label.

I suspect that something went amiss with the firmware upgrade, but did not bite until the AP was power cycled.
I could not get TFTP resets to work, most times not even transferring.
I could get ssh to work, but not scp as /usr/libexec/sftp-server had vanished.
Firmware version on the AP (/etc/version) still 4.0.80...

These Enterprise access points and comprehensive PC controller are fine when they work, but this has been a nightmare.
I'll see if I can switch my remote site to using the simple Android controller.

It took around half an hour to set up my replacement BT Whole Home 3 disk pack.
So far the only downside is that the number of 5G channels is restricted.

I found copious information in the support forum.
"Drinking from the fire hose" comes to mind!

--
Adrian
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