Field Notices
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Cisco 8540 Wireless Controller
- Field Notice: FN74164 - A Limited Subset of Memory Modules in Cisco 8540 and 5520 Wireless Controllers May Fail Prematurely, Resulting in System Instability or Degraded Function - Hardware Upgrade Available 27/Sep/2024
- Field Notice: FN70577 - Regulatory Compliance Issue with AP2800/AP3800/AP4800/AP1560/IW6300 - Software Upgrade Recommended 30/May/2024
- Field Notice: FN72524 - During Software Upgrade/Downgrade, Cisco IOS APs Might Remain in Downloading State After December 4, 2022 Due to Certificate Expiration - Software Upgrade Recommended 07/Dec/2023
- Field Notice: FN72415 - QuoVadis Root CA 2 Decommission Might Affect AireOS Smart Licensing and Smart Call Home, and Mobility Express Software Downloads from Cisco.com - Software Upgrade Recommended 05/Oct/2023
- Field Notice: FN70208 - Aironet 1560, 2800, and 3800 Series Access Points Fail to Pass Traffic - Software Upgrade Recommended 05/Oct/2023
- Field Notice: FN70252 - Inaccurate 'CDP-4-DUPLEX_MISMATCH' Messages Are Logged on AP Switchports - Software Upgrade Recommended 04/Oct/2023
- Field Notice: FN70253 - Wireless Client Fails to Associate: AID Error - Software Upgrade Recommended 04/Oct/2023
- Field Notice: FN70330 - Cisco IOS Access Point Stranded Due to Flash Corruption Issue - Workaround Provided 04/Oct/2023
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Cisco 8510 Wireless Controller
- Field Notice: FN72524 - During Software Upgrade/Downgrade, Cisco IOS APs Might Remain in Downloading State After December 4, 2022 Due to Certificate Expiration - Software Upgrade Recommended 07/Dec/2023
- Field Notice: FN72415 - QuoVadis Root CA 2 Decommission Might Affect AireOS Smart Licensing and Smart Call Home, and Mobility Express Software Downloads from Cisco.com - Software Upgrade Recommended 05/Oct/2023
- Field Notice: FN63916 - Some Cisco Aironet 1530, 1550, 1600, 1700, 2600, 2700, 3500, 3600 and 3700 Series Might Be Unable to Join a Wireless LAN Controller - Software Upgrade Recommended 05/Oct/2023
- Field Notice: FN70208 - Aironet 1560, 2800, and 3800 Series Access Points Fail to Pass Traffic - Software Upgrade Recommended 05/Oct/2023
- Field Notice: FN70252 - Inaccurate 'CDP-4-DUPLEX_MISMATCH' Messages Are Logged on AP Switchports - Software Upgrade Recommended 04/Oct/2023
- Field Notice: FN70253 - Wireless Client Fails to Associate: AID Error - Software Upgrade Recommended 04/Oct/2023
- Field Notice: FN70330 - Cisco IOS Access Point Stranded Due to Flash Corruption Issue - Workaround Provided 04/Oct/2023
Support Documentation
Security Notices