topic Cisco 9120AXi -E Boot loop in Wireless

Cisco 9120AXi -E Boot loop

Magnus43 — Mon, 05 Jul 2021 19:53:42 GMT

I now have 2 Cisco 9120AXi -E that does a Boot loop. I can come in to U-boot but thats it.

Hard Reset doesn't help. Is there anyone who has had this problem and solved it?

Re: Cisco 9120AXi -E Boot loop

patoberli — Thu, 10 Dec 2020 09:24:00 GMT

Can you attach a console to the AP and show us the output of it booting?

Re: Cisco 9120AXi -E Boot loop

Magnus43 — Thu, 10 Dec 2020 09:47:20 GMT

This is the log.

Re: Cisco 9120AXi -E Boot loop

Leo Laohoo — Thu, 10 Dec 2020 10:03:21 GMT

When consoled into the AP, there should be a 3-second countdown timer to break the boot process using the "ESC" key. Hit that and you will be presented with a "u-boot" prompt. Enter the following:

setshenv BOOT part1
saveshenv

And then reboot the AP.

Re: Cisco 9120AXi -E Boot loop

Magnus43 — Thu, 10 Dec 2020 10:14:00 GMT

setshenv does not exist.

Is this the same command ?

setenv - set environment variables

saveenv - save environment variables to persistent storage

Re: Cisco 9120AXi -E Boot loop

patoberli — Thu, 10 Dec 2020 10:22:28 GMT

Flash or memory is probably defect:

Correctable ECC Error detected: addr=0x1bfdfa00, intrCtrl=0x00000090, accessCtrl=0xC388001B
Correctable ECC Error detected: addr=0x1cc4f400, intrCtrl=0x00000090, accessCtrl=0xC388001B
...
...
[  *10/13/2020 10:10:27.7740] NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [act2_verify:1422]

I suggest replacing it.

Re: Cisco 9120AXi -E Boot loop

Leo Laohoo — Thu, 10 Dec 2020 10:22:46 GMT

Different AP firmware have different command variation. If "setshenv" is not accepted then try "setenv".

Re: Cisco 9120AXi -E Boot loop

Magnus43 — Thu, 10 Dec 2020 10:29:50 GMT

Same problem.

But when it reboots i says Rebooting in 5 seconds... Did not do that before.

Re: Cisco 9120AXi -E Boot loop

Leo Laohoo — Thu, 10 Dec 2020 10:56:07 GMT

RMA the AP.