VMware Cannot Add Host to Cluster

I am trying to set up HA but am having some difficulties.

I have created a cluster, Cluster1, but when I try to add a host I am unable.  If I try to add by the name of the host as shown in the DNS portion of ESXi vCenter says "cannot contact host".  The computer is named HP3 and I've tried that as well as hp3.mycompany.lan as shown in the DNS portion.  If I try adding by IP (10.0.1.99) it says that name already exists as that is what the host is called in vCenter.

What can I do to add my hosts to a cluster?
Drafter421Asked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
just drag and drop the server into the cluster
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
check you have DNS, Reverse DNS working, and setup correctly.
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Drafter421Author Commented:
The DNS was not there.  It is now.  But now when I enter HP3 instead of getting cannot contact I get "the name 10.0.1.99 already exists"
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
remove the failed server
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Drafter421Author Commented:
Remove from what?  It is hosting production VMs.  Will they stay online?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
is the server in vCenter?
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Drafter421Author Commented:
The ESXi server?  Yes.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
you do not need to add the host again if already in vCenter
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Drafter421Author Commented:
Nothing happens when I do that.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
drag the host into cluster
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Drafter421Author Commented:
I've tried that.  Nothing happens.  After I try that the summary of the cluster says 0 hosts and 0 everything else.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
are you connected to vCenter?

and Hosts and Clusters is selected in Inventory?
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Drafter421Author Commented:
Here's picture.  When I try dragging 10.0.2.50 into Fisher Cluster nothing happens.

Document.docx
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Drafter421Author Commented:
Connected to vCenter = yes.
Hosts and Clusters selected = Yes.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
if I click a host and drag do not release button, the mouse cursor changes to a block, then move this to your cluster, a wizard will appear about resource pools
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Add Host option on the Cluster, should read Add New Host not in vCenter.
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Drafter421Author Commented:
If I drag the host (10.0.2.99) and drag it around I get the "can't put this here" symbol" everywhere except over the cluster.  When I release the host over the cluster, nothing happens.  No confirmation of any kind.  Then the summary of the cluster indicates nothing is in there.
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Drafter421Author Commented:
If I drag it to the Western cluster I do get an add host wizard, but not for the Fisher cluster.  Is it important which cluster it is in?
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Drafter421Author Commented:
They are in different physical locations.
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Drafter421Author Commented:
10.0.1.99 is more of a test host.  10.0.2.50 is production.  I thought I should keep those seperate.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
you need to move to the correct cluster
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Drafter421Author Commented:
Which to me should be Fisher Cluster but nothing is happening there when I try to drag the host into that.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
if they are both managed by vCenter should be no issues
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
can the hosts see the same storage?
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Drafter421Author Commented:
I rebuilt the cluster and it works.  That was weird.  Thanks once again for all your help hanccocka.  You rock.
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Drafter421Author Commented:
Thanks again.
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