To release the "bad addresses", log into your DHCP server, find the DHCP subnet in question, select all of the "BAD_ADDRESS" entries and delete them. The access-points should immediately reacquire an IP address and rejoin the controller.

I'm seeing this very similar error on one of our stack of four 3850-48F-L's running IOS-XE 16.3.7, up time is just over 42 weeks. CPU does not seem to spike and it averages around 15-20%. Switch functionality does not seem to be impacted. Example of ...

Cisco 3850-48F-L, Denali IOS 16.3.5b, uptime is 9 weeks, 6 days.   Seeing repeating log errors: Sep 4 12:00:08: %SIF_MGR-1-FAULTY_CABLE:Switch 1 R0/0: sif_mgr: High hardware interrupt seen on switch 1 Sep 4 12:01:08: %SIF_MGR-1-FAULTY_CABLE:Switch 1 ...

I am seeing this error excactly every thirty (30) minutes on my 6509-E running IOS 12.2(33)SXI10, so it is not fixed according to the bug reference. Active switch supervisor up time is 4 years, 33 weeks, secondary supervisor up time is 1 year, 38 wee...

We are seeing this message appear about every 2-3 seconds on IOS-XE 03.07.03E. Removing and adding the "snmp-server" commands did not stop these messages from occurring.