The vcenter server network is not available, therefore I cannot connect to it, I cannot use the AD logon to access the Esxi Host, the lockdown mode was enabled on the host and DCUI disabled, How do I get to connected to Vcenter Server? I need help!!!
have you tried to access in both method mean FQDN & IP ?
if both methods leads to the same error ,
then check the services on your vCenter Box and insure that all vCenter related service are set to auto start mode .
If at first you don't succeed, skydiving is not for you
When you mention connect to vCenter Server, do you mean remote desktop to the server or connecting using the vSphere client?
I assume your vCenter is a VM running on this ESXi host you mentioned, are you able to connect to the ESXi host using vSphere client?
From there you should be able to use the VM console to access your vCenter Server.
Yes both remote desktop to the vcenter server or connecting using the vSphere client. Yes, VCenter is a VM on this Esxi Host, I cannot connect to the Esxi host using vSphere Client because the lockdown mode was enabled and the DCUI process stop on the host.
Did you tried web access? http://vcenterserver
Since you are able to ping the server, maybe the firewall is turned on?
Try telnet to port 3389 to the vCenter server.
If able to connect, it could be some windows services not responding and will requires a reboot of the server.
If not try to manage the server remotely. Open services.msc and connect to the vCenter server.
If this works, check and stop the windows firewall service and try connecting again.
You might need to ensure that remote desktop related services are running too.