Can't log into vCenter with vSphere Client

Hi,

Up untill recently I have been able to use vSphere client to log into vCenter.
Meanwhile, i changed the ip class in my LAN, and therefore, i changed manually the ip for the esxi and the VCenter machine. After this change, i still can log successefully in esxi with VsphereWhen, but when I try to log in VCenter I get the following message:

vSphere Client could not connect to "<SERVERNAME>".
An unknown connection error occured. (The request failed because of
a connection failure. (Unable to connect to the remote server))


I tried troubleshooting the problem:
-restarting the services
-reinstalling the vcenter
-erase virtual machine (Win2k8R2) which hosts the Vcenter, and recreate it from zero; reinstall vcenter as well.

I still have the same error.
I would really apreciate your advices.

Thanks
braincapAsked:
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braincapConnect With a Mentor Author Commented:
I managed to resolve my problem by editing the vpxa.cfg file.
The new IP add wasn't updated there.

Thanks everyone for answers.
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Joseph DalyCommented:
I would suggest taking a look at your ODBC SQL connection that you setup when installed vcenter. If you specified the connection strings using the old IP address this could cause you issues with logging in.
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Joseph DalyCommented:
Also have you checked your DNS server for older statically mapped addresses pointed to the older IP address.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
can you telnet <ip address> 80

repeat for 443 and 902
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mmahaekCommented:
Do all your servers (ESXi, vCenter, SQL) have the same gateway and subnet mask?  If you changed IP config, if the settings are not matching, it could affect your ability to connect to the management services.
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braincapAuthor Commented:
best solution
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