WLC Bacup AP SW Version Oddities- 3.0.51.0 (?)

lbadman — Mon, 05 Jul 2021 13:42:58 GMT

Odd one here. Have 3702 APs that show exactly what you would expect for primary and backup images. In our case right now 8.2.141.0/8.2.121.0. Then we have a slew of them showing primary 8.2.141.0 and backup of 3.0.51.0. These WILL NOT take a new backup image.

Here's file system for both:

cst499c-6433#dir flash: (The odd APs)
Directory of flash:/

2 -rwx 280 Jan 1 1970 00:03:07 +00:00 info XX
3 -rwx 965 Nov 18 2015 17:29:22 +00:00 lwapp_mm_mwar_hash.cfg
33 drwx 512 Mar 1 1993 00:03:32 +00:00 ap3g2-rcvk9w8-mx XX
4 -rwx 57080 Dec 20 2016 10:43:35 +00:00 event.log XX
6 -rwx 64 Dec 20 2016 10:43:28 +00:00 sensord_CSPRNG0 XX
72 drwx 2496 Dec 20 2016 10:43:10 +00:00 ap3g2-k9w8-mx.153-3.JC5 XX
66 drwx 0 Mar 1 1993 00:01:01 +00:00 configs XX
67 -rwx 64 Dec 20 2016 10:43:28 +00:00 sensord_CSPRNG1 XX
68 -rwx 128203 Nov 11 2014 17:15:38 +00:00 event.r1
8 -rwx 75 Mar 20 2017 13:30:24 +00:00 capwap-saved-config XX
9 -rwx 1950 May 26 2016 11:40:29 +00:00 atf_override_config_slot0.txt
7 -rwx 0 May 31 2016 08:35:40 +00:00 config.txt XX
11 -rwx 1950 May 26 2016 11:40:29 +00:00 atf_override_config_slot1.txt
10 -rwx 75 Mar 20 2017 13:33:45 +00:00 capwap-saved-config-bak XX
5 -rwx 12312 Mar 20 2017 13:33:45 +00:00 private-multiple-fs XX
12 -rwx 266 Dec 20 2016 10:45:59 +00:00 env_vars XX

40900608 bytes total (19593728 bytes free)

haven422b-9088#dir flash: (the proper APs)
Directory of flash:/

2 -rwx 287 Jan 1 1970 00:05:23 +00:00 info
3 -rwx 75 Mar 20 2017 13:35:56 +00:00 capwap-saved-config
38 drwx 576 Mar 1 1993 00:05:19 +00:00 ap3g2-rcvk9w8-mx
4 -rwx 65517 Dec 20 2016 09:47:23 +00:00 event.log
5 -rwx 0 Mar 1 1993 00:00:34 +00:00 config.txt
68 -rwx 266 Dec 20 2016 10:26:25 +00:00 env_vars
8 -rwx 12312 Mar 20 2017 13:36:48 +00:00 private-multiple-fs
80 drwx 0 Mar 1 1993 00:01:04 +00:00 configs
81 -rwx 75 Mar 20 2017 13:36:48 +00:00 capwap-saved-config-bak
82 -rwx 64 Dec 20 2016 09:47:15 +00:00 sensord_CSPRNG0
84 -rwx 64 Dec 20 2016 09:47:15 +00:00 sensord_CSPRNG1
10 drwx 2496 Dec 14 2016 13:29:02 +00:00 ap3g2-k9w8-mx.153-3.JC5
86 drwx 2496 Aug 31 2016 20:40:05 +00:00 ap3g2-k9w8-mx.153-3.JC3

40900608 bytes total (6049792 bytes free)
haven422b-9088#

Any thoughts?

Hi Lee,

Leo Laohoo — Mon, 20 Mar 2017 21:48:54 GMT

Hi Lee,

When I upgraded our controllers to 8.2.141.0, we had several APs who would not download the new firmware. The APs would join the controller and "act" like everything was fine. The only way to detect they were in this confused state was to look at the AP Uptime column. APs in this condition would report an uptime of 0d, 0h, 0m, 0s.

The only way to fix this is to turn off the power of the AP(s), ensure the AP(s) detail(s) disappear from the controller (takes time, I don't know why) and then enable the PoE to the APs.

Hi Leo,

lbadman — Tue, 21 Mar 2017 12:37:59 GMT

Hi Leo,

Nice to hear from you, brother. In this case, the primary image has updated and the AP is actually functional, serving clients and with long up times (see attached). It's just that the backup image will not update. You can try to force it in the GUI and it just comes back up with 3.0.51.0 after reboot every time.

-Lee

topic Hi Lee, in Wireless

WLC Bacup AP SW Version Oddities- 3.0.51.0 (?)

Hi Lee,

Hi Leo,