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SSH or HTTP connection to ONTAP fails for AD users

Last Updated:

Applies to

  • ONTAP 9
  • Active Directory


  • Authentication times out for AD users or groups
  • All UDP traffic to port 88 on DCs times out while TCP traffic to port 88 works
  • secd logs indicated failures as RPC TOOK TOO LONG and all logged requests sat in the queue for several seconds

[kern_secd:info:92928] .------------------------------------------------------------------------------.
[kern_secd:info:92928] |                              RPC TOOK TOO LONG:                              |
[kern_secd:info:92928] |                       RPC used 28 seconds (max is 23)                        |
[kern_secd:info:92928] |                   and likely caused the client to timeout                    |
[kern_secd:info:92928] .------------------------------------------------------------------------------.
[kern_secd:info:92928] |                                 RPC SUCCESS:                                 |
[kern_secd:info:92928] |              secd_rpc_ontap_admin_cifs_auth_basic has succeeded              |
[kern_secd:info:92928] |                          Result = 0, RPC Result = 0                          |
[kern_secd:info:92928] |                   RPC received at Thu Dec  8 00:25:48 2022                   |
[kern_secd:info:92928] |------------------------------------------------------------------------------'
[kern_secd:info:92928] | [000.000.005]  debug:  Worker Thread 34509862656 processing RPC 155:secd_rpc_ontap_admin_cifs_auth_basic(caller: MGMT_PAM) with request ID:62477 which sat in the queue for 20 seconds.  { in run() at src/server/secd_rpc_server.cpp:2343 }

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