Unfortunately, no change with the reboot. I hadn't remember the last time I did the reboot, so I did give it a try to see if it would do anything, but nope. I think next step will be to unmount the share, and see what connections are being done.

However, the program name did change to RPC-tx-192.168.20.161.0.111

[root@esxi:~] esxcli network ip connection list | grep 161

tcp         0       0  192.168.30.200:1005   192.168.20.161:111    SYN_SENT        69809  newreno  RPC-tx-192.168.20.161.0.111

tcp         0       0  192.168.30.200:986    192.168.30.161:2049   ESTABLISHED     66377  newreno  NFSv3-ServerMonitor      

And now that I removed the NFS share, an old one still lingers....

[root@esxi:~] esxcli network ip connection list | grep 161

tcp         0       0  192.168.30.200:678    192.168.20.161:111    SYN_SENT        66376  newreno  NFSv3-RemountHandler

Thanks - seems like we are on the right track. The old IP was in fact listed there, and I removed it. I'm using the ESXi 6.5 Web GUI, so don't see a place to really restart the NFS service, and also don't see a way to do this from the CLI. I may need to reboot the ESXi host again, but won't be able to do that for a couple of days now. Unless there is a way to stop/start NFS from the CLI.

Not yet. I restarted the management agents but the connection attempt is still there. I need to restart the esxi host, but haven’t gotten around to finding a time to shutdown all my VMs. Will report back soon once I do finally reboot it again.

Restarted the host, same issue

Yes, it is listed there....I wonder if this is some remnants of when I was running 5.5 or 6.0 and was using the thick client to manage (I currently run 6.5 and web gui). Can I simply remove these lines from the esx.conf file, or do I need to remove this properly via another method, maybe from the web gui?

[root@esxi:~] grep -B4 -A4 161 /etc/vmware/esx.conf

/advUserOptions/options[0023]/type = "int"

/advUserOptions/options[0023]/hidden = "false"

/nas/NAS/share = "/volume1/programs"

/nas/NAS/readOnly = "false"

/nas/NAS/host = "192.168.20.161"

/nas/NAS/enabled = "true"

/vsan/faultDomainVersion = "2"

/vsan/faultDomainName = ""

/upgrades/complete[0003]/name = "persistVmkNicName"

In looking at the filesystem list, don't see any reference to a NAS share, though not sure if there is somewhere else where it will be listed.

[root@esxi:~] esxcli storage filesystem list

Mount Point                                        Volume Name  UUID                                 Mounted  Type            Size          Free

-------------------------------------------------  -----------  -----------------------------------  -------  ------  ------------  ------------

/vmfs/volumes/5740c88d-ee89e056-3dd0-00247e546bb4  Disk1        5740c88d-ee89e056-3dd0-00247e546bb4     true  VMFS-5  999922073600  343591092224

/vmfs/volumes/574f9688-d416f29c-2831-00247e546bb4  Disk2        574f9688-d416f29c-2831-00247e546bb4     true  VMFS-5  999922073600  219484782592

/vmfs/volumes/310860ee-c68925c7-ae06-ad5fb7348dc4               310860ee-c68925c7-ae06-ad5fb7348dc4     true  vfat       261853184      52609024

/vmfs/volumes/e71746e3-12d47ac6-2579-2eaa99f12805               e71746e3-12d47ac6-2579-2eaa99f12805     true  vfat       261853184      52760576

/vmfs/volumes/5740af0d-4c1d386c-bc1d-00247e546bb4               5740af0d-4c1d386c-bc1d-00247e546bb4     true  vfat       299712512      83836928

When I started troubleshooting this issue shortly after the first post, I removed all the NFS shares, so there is no entry for the other one, and all NFS shares are unmounted from my ESXi server. What's next?