Mirth Connect uses jcifs java class.
It seems that there is some problem with authentication on Netapp (ontap) filer.
Thu May 23 15:07:20 CEST [netapp:auth.trace.authenticateUser.loginTraceMsg:info]: AUTH: login from 192.168.0.190 rejected because bad local user password.
Try to add these lines to the Mirth config file mcservice.vmoptions
-Djcifs.smb.client.useExtendedSecurity=false
-Djcifs.smb.lmCompatibility=0
-Djcifs.smb.client.useBatching=false
And restart Mirth