Unable to login to vcenter server: The remote server returned an error 404 Not Found

Hello All,

I have setup an ESXi lab with in a physical host, hosting two nested ESXi hosts. All this hosts are version 5.1
I have created a Windows server 2012 R2 virtual machine (which I promoted to DC) at the physical host level and another Windows server 2012 R2 to install vcenter server. I have joined this machine to the domain.

I had to install the vcenter server in the Windows server 2012 R2 utilizing the media for version 6 because I can't find the media for the vcenter server for 5.1. The installation was successful and now I am trying access the vcenter server using vsphere client from my computer as I accessed all host directly but I am getting the attached error when trying to sign in.

What could be happening? Any help is greatly appreciated!
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
what IP Address and URL are you using ?

The Web Client is installed and running ?
LuiLui77Author Commented:
Hi Andrew! I am trying to login just with the IP address assigned to the vcenter server.

I don't recall installing a web client in the process, how can I confirm that and the URL?
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
you state error 404, is this using a Web Browser ?
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LuiLui77Author Commented:
Yes, but what I am trying to login with the vsphere client though.
should I type the URL in the IP/name field?
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
If you are using the vSphere Client (C#), you just need to type an IP Address or FQDN ?

see my EE Article as an example

Part 2: HOW TO: Connect to the VMware vSphere Hypervisor 5.1 (ESXi 5.1) using the vSphere Client

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LuiLui77Author Commented:
Got it! I just installed a fresh copy of vSphere Center 6 on a different 2012 VM. I was attempting to do several things on the old vm that might've corrupted some components.

Thanks Andrew!
LuiLui77Author Commented:
Hi Andrew your article helped a lot Thanks!
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
no problems, that's what there are there for!
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