A 4402 Controller (Software Version - 220.127.116.11) with Web-auth via LDAP database works fine for a random time, two days, some hours.
The LDAP in controller is configured with a user, that has bind's privilegies.
I don't know why the authentication of users stop to work, i need re-enter the pass of user in controller to work again.
I got this event viewer on AD:
An TLS 1.0 connection request was received from a remote client application, but none of the cipher suites supported by the client application are supported by the server. The SSL connection request has failed.
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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