The vSphere Client 5.5 installer cannot connect to vCenter 6.0 or newer. It is strictly locked to the vCenter 5.5 architecture.
administrative credentials (e.g., root for direct ESXi login or administrator@vsphere.local for vCenter). Click Login .
: Modify the client configuration file VpxClient.exe.config located in the installation directory. Add the following XML configuration node under the block to enforce compatibility with older cryptographic standards: