- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-05-2019 01:25 PM - edited 07-05-2021 10:48 AM
I have a 3504 that I have been able to update as far as 8.8.120. Multiple attempts to update to 8.8.125 have failed. I have tried via GUI and command line. Consistently fails trying to expand the file downloaded from CCO. Anyone else having this issue? If so have you been able to overcome it. I
Solved! Go to Solution.
- Labels:
-
Other Wireless Topics
Accepted Solutions
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-08-2019 09:37 AM
Well the licensing appears to be the issue. I removed the RTU licenses and the unit updated to 8.8.125. I did notice that my RTU count of (5) put me at (6) including the one license that comes with the unit. I have since reassigned to a total of (5). See what happens next update.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
03-14-2025 05:59 AM
As this thread still pops up very high on google for this problem and I just had it again today, I found a new workaround which worked reliably.
I use FileZilla Server as the FTP server and the problem with the FTP transfer was a to fast transfer to the WLC which caused the WLC to abort the transfer. The workaround is to edit the FileZilla Server settings -> select the FTP User which you use for the transfer and limit the transfer speed to something like 500 KiB/s. With this the image transfer immediately started to work. The 3504 was running on 8.10.190.0 and I tried to transfer 8.10.196.0.

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-05-2019 03:19 PM
Um, no I don't have that problem.. because I know that support ENDED with 8.5.x code for most if not ALL 802.11n class devices. Only 802.11ac class devices supported from 8.6 and up.
That's from Supported Access Points in Cisco Wireless Software Releases (Table 5) of the Cisco Wireless Solutions Software Compatibility Matrix dtd jul 2019.
I will have an old 5508 hangin around for legacy support. Because it too dies with 8.5.x code. It is 5520's and up from here on out.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-05-2019 03:26 PM
are you pulling the .aes file your self and loading the wlc or are you letting the wlc reach out to cisco for the file?

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-05-2019 03:34 PM
couple of questions
Have you done a MD5 check on the file once it was downloaded, just to make sure it was not corrupt.
Are you using TFTP to upload the file to the WLC - if so what TFTP client, have you tried SFTP or HTTP? I had this issue previously where code wouldn't load via TFTP, worked by SFTP and HTTP. Believe some TFTP clients have issues with large files (50mb plus)
I also find it best to download the file from the CCO site myself and then upload to the WLC rather than getting the WLC to reach out to CCO.
What code are you upgrading from?
*** Please rate helpful posts ***
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-06-2019 12:02 AM
@rm760 wrote:
Consistently fails trying to expand the file downloaded from CCO.
I suspect the firmware file is corrupt.
You need to download the firmware again.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-06-2019 01:35 AM

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-06-2019 06:01 AM
Hi,
It is recommended to post the upgrade log for analysis.
Best regards,
Haifeng
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-06-2019 09:50 AM
Thanks for all of the replies. I have tried downloading the file from CCO using multiple browsers on multiple computers, all have been able to download the file with positive MD5 results. I have tried multiple computers as the source or host of the update file. Again met with failure. I have also tried power cycling the 3504 before attempting the update. Updated were attempted via GUI / HTTP transfer and CLI. Again failure. As I stated 8.8.120 worked just fine. I have (4) APs connected, (3) 3802 in local mode and (1) 3702 in flexconnect mode at a remote site.
Logs I am seeing only detail a basic failure to complete the upload. Is there debug or a more specific logging I could run to capture more detail?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-06-2019 10:34 AM
Here are screenshots of the errors
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-06-2019 01:18 PM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-06-2019 10:38 AM
I don't think this is the solution though, I think you have some leftover files on the partition which don't get removed correctly, or maybe broken flash. I currently don't have any links handy for those issues sadly, but try to search for "wlc clean flash " or similar.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-06-2019 01:09 PM
Again thanks to all who have taken the time to look at my thread. It may be interesting to note that the controller came out of the box with 8.5 code. I first tried going to 8.8.125 which failed. I thought it might be a revision step upgrade so I upgraded to 8.7 without issue. An attempt from 8.7 to 8.8.125 failed. Going from 8.7 to 8.8.120 worked. Now trying to go from 8.8.120 to 8.8.125 is failing.
Please also know CPU load is low. 4 APs with 16 endpoints. Hyperlocation is turned off.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-06-2019 11:42 PM
Can you enter the following and compare it with my output?
(Cisco Controller) >test system disk-usage
Filesystem Size Used Available Use% Mounted on
devpts 1.7G 388.0K 1.7G 0% /dev/pts
none 1.7G 64.0K 1.7G 0% /var/run
none 1.7G 32.0K 1.7G 0% /tmp
none 1.7G 388.0K 1.7G 0% /dev
/dev/mmcblk0p2 16.4G 566.6M 15.0G 4% /mnt/wlc
/dev/mmcblk0p3 7.2G 92.1M 6.7G 1% /var/log
/dev/mmcblk0p1 464.8M 77.2M 359.3M 18% /boot
/dev/loop3 110.0K 10.0K 92.0K 10% /root/.csl
tmpfs 40.0M 0 40.0M 0% /mnt/ap_bundle
It's also from a 3504 running 8.8.125.0.
And please also show the output for this command:
(Cisco Controller) >show sysinfo
Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 8.8.125.0
RTOS Version..................................... 8.8.125.0
Bootloader Version............................... 8.5.103.0
Emergency Image Version.......................... 8.5.103.0
OUI File Last Update Time........................ N/A
Build Type....................................... DATA + WPS
.....
.....
.....
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-07-2019 08:15 AM
Check/clear/correct anything in the file path field then try again.
Please click Helpful if this post helped you and Select as Solution (drop down menu at top right of this reply) if this answered your query.
------------------------------
TAC recommended codes for AireOS WLC's and TAC recommended codes for 9800 WLC's
Best Practices for AireOS WLC's, Best Practices for 9800 WLC's and Cisco Wireless compatibility matrix
Check your 9800 WLC config with Wireless Config Analyzer using "show tech wireless" output or "config paging disable" then "show run-config" output on AireOS and use Wireless Debug Analyzer to analyze your WLC client debugs
Field Notice: FN63942 APs and WLCs Fail to Create CAPWAP Connections Due to Certificate Expiration
Field Notice: FN72424 Later Versions of WiFi 6 APs Fail to Join WLC - Software Upgrade Required
Field Notice: FN72524 IOS APs stuck in downloading state after 4 Dec 2022 due to Certificate Expired
- Fixed in 8.10.196.0, latest 9800 releases, 8.5.182.12 (8.5.182.13 for 3504) and 8.5.182.109 (IRCM, 8.5.182.111 for 3504)
Field Notice: FN70479 AP Fails to Join or Joins with 1 Radio due to Country Mismatch, RMA needed
How to avoid boot loop due to corrupted image on Wave 2 and Catalyst 11ax Access Points (CSCvx32806)
Field Notice: FN74035 - Wave2 APs DFS May Not Detect Radar After Channel Availability Check Time
Leo's list of bugs affecting 2800/3800/4800/1560 APs
Default AP console baud rate from 17.12.x is 115200 - introduced by CSCwe88390
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-08-2019 09:09 AM
I did notice this as well. the same file path is used for 8.8.120 and works correctly. Even tried changing file path. no Joy.
