After upgrading from 9.15 to 9.21, we had these error : We are using two C25 with HA, and we have only this en the "Slave" C25 05/14/16 16:20:46 Info PAM Log Filter May 14 16:20:46 C25--Master.net sshd[3831]: Failed password for root from 10.32.0.113 port 55188 ssh2 05/14/16 16:19:16 Info PAM Log Filter May 14 16:19:16 C25-Sodexo-.net gui_s_mgr: (pam_unix) session opened for user WC by (uid=0) 05/14/16 16:19:10 Info Config Manager Upgrading Wireless AP image: Serial 12472019236A0000, from 09.15.10.0004 to 09.21.08.0013 05/14/16 16:19:10 Info RU Session Manager Wireless AP registration and authentication succeeded. (AP SN 12472019236A0000 AP IP 10.32.180.91 (active tunnel), Certificate Can anyone have got already this ?