We have a ticket open but TAC reports no one else has seen this (using version 3.4.4.3, 3.4.5.0, 3.4.5.1 or 5.0.5.4):
At some point after the controller comes up (anywhere from 1 day to 4 weeks), user traffic just stops passing 'through' the controller. Management/ping/etc. all work fine but nothing related to 'wireless' traffic passes. Until 3.4.5.1, traffic would eventually start passing again on it's own. Since 3.4.5.1, I have to reboot to get traffic to pass again. This is on an M3 controller.
Since the issue doesn't appear with version 3.4.2.6, I feel like I can eliminate hardware and 'environmental' issues?
Anyone else seen anything like this? TAC appears to be stumped (a first for me in over 8 years).