Hi, In my server i am getting following event id 16025 Log Name: Application Source: MSExchangeTransport Date: 2/15/2013 12:14:05 AM Event ID: 16025 Task Category: Configuration Level: Error Keywords: Classic User: N/A Computer: DC01.secrets.local Description: No DNS servers could be retrieved from network adapter 00000000-0000-0000-0000-000000000000. Verify that the computer is connected to a network and that the Get-NetworkConnectionInfo cmdlet returns results. But when i run Get-NetworkConnectionInfo i am getting following error [PS] C:\Windows\System32>Get-NetworkConnectionInfo Get-NetworkConnectionInfo : Failed to read the network adapter information beca use of error 'Invalid class '. At line:1 char:25 + Get-NetworkConnectionInfo <<<< -- Please note my mailflow is running fine and other cmdlets are working e.g get-exchangeserver Anyone have any idea about this... Thanks

check for network adapters on your server are they ok (installed), also check this http://www.microsoft.com/technet/support/ee/transform.aspx?ProdName=Exchange&ProdVer=8.0&EvtID=16025&EvtSrc=MSExchangeTransport&LCID=1033 Remigiusz ExchangeBlog

Check the binding order as wellGulab Prasad, gulab@exchangeranger.com My Blog | Z-Hire Employee Provisioning App

Thank you for your replies... But my main concern is why i am getting error "invalid class". I have got resolution id but still i am getting same error "invalid class" after running "Get-networkconnectioninfo"....

Hello... I have another issues in my system now, when i checked my processor and ram information it is showing "not available". and when i run systeminfo : findstr "Time" in command promt i am getting same error "invalid class". I am attaching screenshot of errors. Thank you

Maybe you have installed Powershell 3.0 ?? check for KB2506146 or KB2506143 and remove them. Remigiusz ExchangeBlog

Hi , Please check if the network adapter get the IP from DHCP and if it is disabled . You can view local network adapter via network and sharing center. Or run ipconfig /all to check the IP address. More information Get-NetworkConnectionInfo: http://technet.microsoft.com/en-us/library/aa998845.aspxWendy Liu TechNet Community Support

Hi , Please check if the network adapter get the IP from DHCP and if it is disabled . You can view local network adapter via network and sharing center. Or run ipconfig /all to check the IP address. More information Get-NetworkConnectionInfo: http://technet.microsoft.com/en-us/library/aa998845.aspxWendy Liu TechNet Community Support

Hello, I faced the same issue today and it was related to the WMI repository, so what I did was: 1- Stopped the Windows Management Instrumentation service 2- Went to c:\Windows\System32\wbem 3- Renamed repository directory. 4- Started the WMI service again and everything went back to normal after that. Of course I also did a system reboot and checked the I can toggle the NIC info from the Exchange powershell, also the system info via CMD. I hope this helps. For every action, there is a reaction!