This is a known issue affecting vCenter Server 7.0 U2 and is resolved in 7.0 U3.
Workaround:
To workaround this issue, access vCenter using a fully qualified domain name instead of IP address.
Additionally, if the Hostname within the VAMI is short, update the hostname to FQDN.
- Access the vCenter's VAMI page on port 5480 via root.
- On the left-hand side panel, navigate to the Networking section.
- In the Network Settings view, click on Edit at the top right.
- In the Edit Network Settings wizard:
- Select Network Adapter > Select the appropriate Management Network NIC > Click Next.
- Edit settings > Update the Hostname from short to FQDN > Click Next.
- SSO credentials > Enter in the SSO administrator credentials > Click Next.
- Ready to complete > Review the settings before completing the wizard > Check the box to acknowledge > Click Finish.
- Note: Reconfiguring the NIC 0 management network adapter will result in downtime of your vCenter Server and can take some time before it is up and running again.