AIR-CT5520-K9 motorola/Xiaomi

alejandro.aguilar · ‎10-08-2020

greetings,

After the upgrade (Software Versión: 8.10.130.0), there are problems to connect Motorola and Xiaomi (android 10). These phones don't get IP addresses and have problems with the mosts of networks.

Someone has had a similar behavior?

Thanks,

Scott Fella · ‎10-08-2020

Few things that should always take place prior to an upgrade:
Test and validate everything is working prior to upgrading in prod
Export the config prior to an upgrade
Run a diff after the upgrade to see if any values have changed (things do change and can break things)
Remediate any issues from the diff or accept the diff as your new standard
Roll back if you run into issues and open a TAC case
Have you searched the bug toolkit or the forums? There have been some threads on devices after upgrading that might help.

-Scott
*** Please rate helpful posts ***

Rich R · ‎10-11-2020

To add to Scott's list: Always read the release notes!

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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.
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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

patoberli · ‎10-08-2020

Check your SSID configuration and make sure that 802.1X-SHA2 under Security -> Layer 2 is disabled. That option got enabled for me when I upgraded to 8.10.130.0 and caused the same issue (also Intel laptops were unable to connect in my case).

Leo Laohoo · ‎10-08-2020

Extremely difficult to do anything without any useful information:

Have you done a debug of the client?
What error messages are forming up?

NOTE: Currently using 8.10.130.0 and I do not see any issues with different clients (including Xiaomi).