Unable to connect to ESXi 5.5 using VSphere Client 5.5

I am having issues connecting to ESXi 5.5 using Vpshere Client 5.5. I am able to ping the server and the DNS from my PC. However, I am failing my Test Management Network test. It will fail the DNS  and hostname.
Arnold SwanAsked:
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Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization ConsultantCommented:
if you connect to the ESXi 5.5 server using https:// do you get the web page ?

can you connect via SSH ?
Arnold SwanAuthor Commented:
Hi Andrew - Yes, I am able to connect to the ESXi 5.5 server using https:// and I do get the web page. I am able to ssh using PuTTY and login. I am able to ping the server without any issues. Now when I try to run vShere Client I get a choice to either run or save the installer. Which ever choice I make I get the attached error.
Arnold SwanAuthor Commented:
Andrew - I just tried logging in with VMware Workstation and was able to login. However, this version is not licensed. So I will still need to figure out why vSphere client is not working. I will keep trying to troubleshoot.
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Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization ConsultantCommented:
Restart the Network Management Agents, failing that if that does not work, restart the server.

VMware Workstation ONLY needs to be licensed to run VMs! (not use as a client!) - but it is restricted as a client.

Also 5.5 is end of life, but make sure you download and install the last patch before they disappear!
Arnold SwanAuthor Commented:
For some strange reason VSphere started working and I was able to connect to my server. Prior to this I tried trouble shooting and testing the DNS and host name through ESXi. All test passed. Not sure what happend ed but thank s Andrew for your input.

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Arnold SwanAuthor Commented:
As always thank you Andrew!!
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