Although the NFS server and ESXi hosts were confirmed to be on the same subnet, the mounting process was being blocked
NFS server is successfully pingable from ESXi hosts and NFS Server
NFS ports are open
Environment
VMWare vSphere ESXi
Cause
The underlying cause of the issue was identified as an incorrect folder path syntax. Specifically, a crucial forward slash was missing at the beginning of the path when attempting to mount the NFS datastore.
Resolution
Using correct the folder path syntax by including a forward slash at the beginning of the path when configuring the NFS datastore mount.