I just had the same problem. I thought it was a Bug as well so I updated the IOS and still had the same problem, but I do recommend checking the IOS for bugs and updating as needed. My issue ended up being that I had too many devices requiring POE and the switch did not have the capacity. If you can access the switch through a web interface that will show you if you are over the limit.
Check the power by issuing the command show power inline and look at the first line where it says available, Used, and Remaining to make sure you have enough power. I have 24 devices connected and have 76% used and this is a 48 port switch so just a few more phones and I would be over the limit.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...