Could not launch vSphere Client of vCenter, why?

[jerry5]

I just installed vCenter on an ESXI host (v7.0 U3):

• (my storage is only 256GB, so I choose "thin" mode)
• It seems that "vSphere client service" is healthy.
• 
• And I can see linking page for vSphere client
• 
• But the vSphere client could never be launched
• 

Anybody knows why? Thanks!

[fabio1975]

Ciao 

What IP is assigned to the acc.shannond.aus.advantech.corp FQDN?
On the web page where the button to launch the vSphere WEB GUI appears you have the IP 172.21.6.158, while on the page with the error you have an FQDN. There seems to be something wrong with DNS NAME resolution.
What Network Settings have you set in the vCenter virtual appliance?

[IRIX201110141 · Accepted solution]

The vSphere Client redirected to the SSO component which always use its FQDN during the login.  Looks youre try to reach your VCSA from "outside" of your Network or your Clients cant simply unresolve the used Domainname.

You can workaround by adding your IP and used FQDN into your local etc/hosts. You need a flush dns as well but than your Browser can use both the IP and the FQDN.

Regards,
Joerg

[jerry5]

Thanks both Fabio and Joerg, you got it correct! And Kudos to you!