I had this occur on two 4402's in 1 week. Unexpected system reload based on uptime although no crash log, controller will not associate any NEW clients, existing clients OK, controller reports erroneous client count. Then after rebooting the controller it functions normally. At first I was thinking failed power supply caused issue as PS1 did go red, now not sure. TAC has no idea as well - just wondered if anyone had experienced this odd behavior. 4402 - v.4.1.185.
We just had this same very issue 4.1.185 and we worked with TAC and went through the motions of upgrades to 4.2.x. We ended up RMAing the WLC as it continued to work fine for a few weeks and them nut up again....
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
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