If you have been working with VMware for over a decade, hearing the phrase "vSphere Client 5.5" likely invokes a specific feeling. It’s a mix of nostalgia for a reliable tool and frustration regarding the chaotic transition period that followed.
Once installed, establishing a session with your infrastructure requires precise credentials and network visibility.
If you managed vSphere 5.5, you remember the certificates. By default, the C# client would throw security warnings constantly because the vCenter server used self-signed certificates.
If you are still using vSphere Client 5.5, consider migrating to: