Wondering if anyone else is seeing this problem.
We've experienced problems with after updating controllers to 6.4.2.6
All APs on a controller will rebootstrap after a period of time, usually less than 48 hours. Ap debug info shows heartbeats missed and the reason for disconnect as: controller aged out
We've rolled our live controllers back to the previous version (with the ARM memory leak) for now and have a couple controllers on test. The problem occurred on one of the test controllers over the weekend, the rest of our 1900 APs were just fine on the older code.
We believe there's a bug in 6.4.2.6 and we're in conversation with support about this. Currently we're being told nobody else has reported this problem, so thought I'd ask here... Shout up if you've seen it.