vSphere client could not connect to "IP", An Unknown connection error occurred

Hello Everbody,

we have 4 ESXi Servers in our environment which hosts multiple VMs. These ESXi hosts are managed individually with VMware vSphere  client (software). We do not use VCenter.

3 hosts are working fine, problem is with only 1 ESXi  host which is not getting connected via vSphere client.

I am able to ping that IP but not able to take ssh session of that host. cannot open via web as well.

i am able to ping and take ssh sessions of virtual machines hosted on that ESXi server.

but cannot open it through Vsphere client.

Please Help.

Thanks,

Vijesh