Error audit events from Netapp filer after upgrade

Hello all,

Since I updated to the new version (6.1.4 to 6.15), all access events from netapp filer aren't used by the DI server.

I haven't changed anything in the configuration before upgrade. all access events worked. After restarting the services when the upgrade is finished, the access event doesn't work.

we have a connection error :

2020-11-06 10:24:00 INFO: V-378-1339-3011: #{7928} [tcpserver: 204] Connection received from client[XXX.XXX.XXX.XXX] with socket = 940

2020-11-06 10:24:00 INFO: V-378-1339-8005: #{7928} [associate_dev_iocp: 109] Socket(940) added to IOCP.

2020-11-06 10:24:00 INFO: V-378-1339-3008: #{7928} [tcpserver: 176] Accepting incoming client connection

2020-11-06 10:24:00 INFO: V-378-1339-3009: #{7928} [tcpserver: 178] Waiting for client to connect...

2020-11-06 10:24:00 ERROR: V-378-1339-6013: #{11064} [process_req: 272] Failed to get request header data from negotiation request. buffer::

<?xml version="1.0"?><Header><NotfType>NEGO_REQ</NotfType><ContentLen>278</ContentLen><DataFormat>XML</DataFormat></Header>

2020-11-06 10:24:00 INFO: V-378-1339-6008: #{11064} [print_bufdetails: 195] Bytes requested 404: Bytes received/sent 404

2020-11-06 10:24:00 ERROR: V-378-1339-3045: #{11064} [iocpserverthread: 908] process_req() failed.

2020-11-06 10:24:00 INFO: V-378-1339-8019: #{11064} [closeclient: 493] A connection aborted for a client, Closing client socket 940 for client ip XXX.XXX.XXX.XXX, Vserver[<NULL>], CIFS Server[<NULL>], Cluster[<NULL>].

2020-11-06 10:24:00 ERROR: V-378-1339-8028: #{11064} [find_vserv_other_sok_conn: 623] Invalid arguments.

2020-11-06 10:24:00 ERROR: V-378-1339-4102: #{11064} [set_vserv_disconn_time: 3521] Invalid arguments.

2020-11-06 10:24:00 ERROR: V-378-1339-8026: #{11064} [closeclient: 522] Failed to set disconnection time[1604654640] for socket[940], client ip[XXX.XXX.XXX.XXX], VServer[<NULL>], CIFS Server[<NULL>], Cluster[<NULL>].

Thank you

Grégory