Install and Upgrade TechNotes
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- Change Installation Modes on Catalyst 9800 Wireless Controller 30/Nov/2023
- Implement Software-Defined Access for Wireless with DNAC 27/Apr/2023
- List Cisco IOS XE Wireless Features per Release 19/Aug/2025Updated
- Migrate from AireOS WLC to Catalyst 9800 with WLANPoller 18/Aug/2025
- Recover from a Boot Loop Caused by Image Corruption on Wave 2 and 11ax Access Points (CSCvx32806) 10/Apr/2024
- Safely Upgrade Access Points, Avoiding Image Corruption That Causes Boot Loop 10/Apr/2024
- Understand Access Point Image Upgrades for Remote Deployments 27/Jul/2025
- Upgrade Catalyst 9800 WLC HA SSO Using ISSU 20/Sep/2024
- Upgrade Software on Catalyst 9800 with N+1 Rolling AP Upgrade 28/Aug/2025
- Upgrade and Downgrade of Catalyst 9800 Controllers: Tips and Tricks 24/Aug/2023
- Upgrade the Catalyst 9800 WLC | Quick Start Guide 17/Dec/2024
Support Documentation
Install and Upgrade