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    • https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/%22nfs%3A_server_not_responding%22_because_gateway_is_not_sending_ARP_responses_to_ONTAP
      Intermittently, NFS client host(s) logs nfs: server svm1 not responding, still trying while mounting a LIF(s) hosted on a specific ONTAP node(s) 20 minutes later, ONTAP starts broadcasting ARP request...Intermittently, NFS client host(s) logs nfs: server svm1 not responding, still trying while mounting a LIF(s) hosted on a specific ONTAP node(s) 20 minutes later, ONTAP starts broadcasting ARP requests for the gateway The gateway sends neither ARP responses, nor ARP requests The NFS client repeatedly retransmits the TCP SYN The time stamps of these retransmissions coincide with when the client logs nfs: server svm1 not responding, still trying ONTAP does not reply with a TCP SYN-ACK