08-04-2022 04:20 AM
Hi,
What is the meaning of this message? How to solve this issue?
Can we change WLC emergency version? Does it have downtime?
Thank you.
08-04-2022 04:37 AM
- Possible bug , have a look into : https://www.cisco.com/c/en/us/support/docs/wireless/wireless-lan-controller-software/200046-tac-recommended-aireos.html and or upgrade your controller accordingly.
M.
08-04-2022 10:55 AM - edited 08-04-2022 11:22 AM
Can you confirm the software version and model, most likely you’re heading this bug
CSCvh94458 Wave1 APs Last reload reason shows "Invalid image opcode"
hope this helps
08-04-2022 11:32 AM
Currently, AIR-CT8510-K9 running version 8.5.135.0
08-05-2022 08:52 AM
8.5.135.0 = 15.3(3)JF8 which should have the fix for CSCvh94458 but the bug description also gives a clue "Could be triggered due to IOS flash corruption issue". Flash corruption was a long running problem on the IOS APs. To avoid this upgrade to latest 8.5 code (currently 8.5.182.0) - refer to https://www.cisco.com/c/en/us/support/docs/wireless/wireless-lan-controller-software/200046-tac-recommended-aireos.html#anc10
and also refer to these docs *before* upgrading to resolve any flash corruption issues before you upgrade:
https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/213317-understanding-various-ap-ios-flash-corru.html
https://www.cisco.com/c/en/us/support/docs/field-notices/703/fn70330.html
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