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Unable to connect to a ESXI server via Vsphere client.

Posted on 2013-11-12
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Last Modified: 2013-11-28
I'm unable to connect to my ESXi server using Vsphere client. The client is installed on a XP machine (Version 5) and ESXI is 5.1.0

I can ping the ESXi server from the xp machine. And I can connect with another PC (windows 7 installed) but not with the XP PC

Error when attempting to connect  -

AN UNKNOWN CONNECTION ERROR OCCURED. THE REQUEST FAILED BECAUSE THE CLIENT COULD NOT VALIDATE THE SERVERS SSL CERTIFICATE (THE UNDERLYING CONNECTION WAS CLOSED; COULD NOT ESTABLISH TRUST RELATIONSHIPS FOR THE SSL/TLS SECURE CHANNEL?))

Any assistance would be appreciated.
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Question by:APC_40
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6 Comments
 
LVL 118

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE)
Andrew Hancock (VMware vExpert / EE MVE) earned 333 total points
ID: 39641473
can you connect via IP Address or FQDN?

can you test the following:-

telnet <ip address> 80

telnet <ip address> 443

telnet <ip address> 902

if you connect via a browser to http://<ip address> do you get the vSphere ESXi web page?
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Author Comment

by:APC_40
ID: 39642687
I tried to access via the browser but it failed.

I only tried connecting via the IP address and not the name.
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LVL 118

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE)
Andrew Hancock (VMware vExpert / EE MVE) earned 333 total points
ID: 39643023
are you sure you have the correct IP Address?

any firewalls in the way?

what are the results of the telnet tests?
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Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

 
LVL 5

Accepted Solution

by:
Steve M earned 167 total points
ID: 39644829
Have a look at this article:
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2011834

To resolve this issue, install/reinstall Microsoft .NET Framework 3.5 Service Pack 1 or later.

Cheers,
Steve
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LVL 5

Expert Comment

by:Steve M
ID: 39660410
APC_40 - any update on this issue you were having?
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Author Closing Comment

by:APC_40
ID: 39684105
Good trouble shooting tips all round. I re-installed .net and it seemed to do the trick but I think our network team also configured something - thanks anyway.
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