I never opened a TAC Case on this issue. I've observed that this occurs during vulnerability scans.

I've also observed that this happens during vulnerability scans.

Yes, ip routing is config'd. The error message references a CAPWAP issue which is part of the Wireless Lan Controller capability and not being used.

The switch is config'd for static routing and I haven't made any recent config changes. Is there some specific aspect of ip routing that I should check?   Thx!

I experience the same error messages on Cisco 3650-48TS-S IOS XE 16.03.06. I'm not using the WLC capability of the 3650, nor do I have wireless in the environment. Is this a bug?