Skip to content
Skip to search
Skip to footer
Cisco.com Worldwide
Products and Services
Solutions
Support
Learn
Explore Cisco
How to Buy
Partners Home
Partner Program
Support
Tools
Find a Cisco Partner
Meet our Partners
Become a Cisco Partner
Support
Product Support
Wireless
Cisco Catalyst 9800 Series Wireless Controllers
Field Notices
Some links below may open a new browser window to display the document you selected.
View Documents by Topic
Choose a Topic
Cisco Catalyst 9800-80 Wireless Controller
Cisco Catalyst 9800-40 Wireless Controller
Cisco Catalyst 9800-L Wireless Controller
Cisco Catalyst 9800-L-C Wireless Controller
Cisco Catalyst 9800-L-F Wireless Controller
Cisco Catalyst 9800-80 Wireless Controller
Field Notice: FN74109 - Access Point Image Corruption During CAPWAP Upgrade May Result in Boot Failure - Software Upgrade Recommended
19/Sep/2024
Field Notice: FN74148 - PAK and RTU Licenses Cannot Be Converted to Smart Licenses When Doing Direct (Long-Jump) Upgrades from Cisco IOS XE Software Release 17.3 or Earlier to Release 17.11 or Later - Workaround Provided
21/Jun/2024
Field Notice: FN72510 - Cisco IOS XE Software: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Certain Cisco IOS XE Software Releases - Configuration Change Recommended
10/Jan/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: FN63942 - Wireless Lightweight Access Points and WLAN Controllers Fail to Create CAPWAP Connections Due to Certificate Expiration - Software Upgrade Recommended
06/Dec/2023
Field Notice: FN72323 - Cisco IOS XE Software: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing, Smart Call Home, and Other Functionality - Software Upgrade Recommended
05/Oct/2023
Field Notice: FN72578 - Cisco IOS XE - Smart Licensing Using Policy Might Cause High CPU/Memory Usage - Software Upgrade Recommended
29/Sep/2023
Cisco Catalyst 9800-40 Wireless Controller
Field Notice: FN74109 - Access Point Image Corruption During CAPWAP Upgrade May Result in Boot Failure - Software Upgrade Recommended
19/Sep/2024
Field Notice: FN74160 - A Limited Subset of Memory Modules in Cisco Catalyst 9800-L Wireless Controllers May Fail Prematurely - Hardware Upgrade Available
13/Sep/2024
Field Notice: FN74148 - PAK and RTU Licenses Cannot Be Converted to Smart Licenses When Doing Direct (Long-Jump) Upgrades from Cisco IOS XE Software Release 17.3 or Earlier to Release 17.11 or Later - Workaround Provided
21/Jun/2024
Field Notice: FN72510 - Cisco IOS XE Software: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Certain Cisco IOS XE Software Releases - Configuration Change Recommended
10/Jan/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: FN63942 - Wireless Lightweight Access Points and WLAN Controllers Fail to Create CAPWAP Connections Due to Certificate Expiration - Software Upgrade Recommended
06/Dec/2023
Field Notice: FN72323 - Cisco IOS XE Software: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing, Smart Call Home, and Other Functionality - Software Upgrade Recommended
05/Oct/2023
Field Notice: FN72578 - Cisco IOS XE - Smart Licensing Using Policy Might Cause High CPU/Memory Usage - Software Upgrade Recommended
29/Sep/2023
Cisco Catalyst 9800-L Wireless Controller
Field Notice: FN74109 - Access Point Image Corruption During CAPWAP Upgrade May Result in Boot Failure - Software Upgrade Recommended
19/Sep/2024
Field Notice: FN74160 - A Limited Subset of Memory Modules in Cisco Catalyst 9800-L Wireless Controllers May Fail Prematurely - Hardware Upgrade Available
13/Sep/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: FN63942 - Wireless Lightweight Access Points and WLAN Controllers Fail to Create CAPWAP Connections Due to Certificate Expiration - Software Upgrade Recommended
06/Dec/2023
Field Notice: FN72323 - Cisco IOS XE Software: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing, Smart Call Home, and Other Functionality - Software Upgrade Recommended
05/Oct/2023
Cisco Catalyst 9800-L-C Wireless Controller
Field Notice: FN74109 - Access Point Image Corruption During CAPWAP Upgrade May Result in Boot Failure - Software Upgrade Recommended
19/Sep/2024
Field Notice: FN74160 - A Limited Subset of Memory Modules in Cisco Catalyst 9800-L Wireless Controllers May Fail Prematurely - Hardware Upgrade Available
13/Sep/2024
Field Notice: FN72510 - Cisco IOS XE Software: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Certain Cisco IOS XE Software Releases - Configuration Change Recommended
10/Jan/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: FN63942 - Wireless Lightweight Access Points and WLAN Controllers Fail to Create CAPWAP Connections Due to Certificate Expiration - Software Upgrade Recommended
06/Dec/2023
Field Notice: FN72323 - Cisco IOS XE Software: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing, Smart Call Home, and Other Functionality - Software Upgrade Recommended
05/Oct/2023
Field Notice: FN72578 - Cisco IOS XE - Smart Licensing Using Policy Might Cause High CPU/Memory Usage - Software Upgrade Recommended
29/Sep/2023
Cisco Catalyst 9800-L-F Wireless Controller
Field Notice: FN74109 - Access Point Image Corruption During CAPWAP Upgrade May Result in Boot Failure - Software Upgrade Recommended
19/Sep/2024
Field Notice: FN74160 - A Limited Subset of Memory Modules in Cisco Catalyst 9800-L Wireless Controllers May Fail Prematurely - Hardware Upgrade Available
13/Sep/2024
Field Notice: FN72510 - Cisco IOS XE Software: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Certain Cisco IOS XE Software Releases - Configuration Change Recommended
10/Jan/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: FN63942 - Wireless Lightweight Access Points and WLAN Controllers Fail to Create CAPWAP Connections Due to Certificate Expiration - Software Upgrade Recommended
06/Dec/2023
Field Notice: FN72323 - Cisco IOS XE Software: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing, Smart Call Home, and Other Functionality - Software Upgrade Recommended
05/Oct/2023
Field Notice: FN72578 - Cisco IOS XE - Smart Licensing Using Policy Might Cause High CPU/Memory Usage - Software Upgrade Recommended
29/Sep/2023
Support Documentation
All Support Documentation for this Series
Security Notices
Bulletins
Security Advisories, Responses and Notices
Customers Also Viewed