https://community.hpe.com/t5/server-management-systems/dcom-error-10009/m-p/3747103#M18946 I have upgraded a ProLiant ML370 G4 with ProLiant Support Pack 7.40B.<BR />After restarting the server, I wasn't able to ping or connect to another Domain Controller on the internal network. In the System Event Log I saw many DCOM 10009 errors (unable to connect to computer...).<BR />Installation of PSP 7.40B changed the driver of one of the two NICs in teaming from NC7781 to NC7771.<BR />Changed the driver of the NIC to the correct one, rebooted the server and all was OK. Wed, 08 Mar 2006 12:27:27 GMT Ale Tavian 2006-03-08T12:27:27Z https://community.hpe.com/t5/server-management-systems/dcom-error-10009/m-p/3747103#M18946 I have upgraded a ProLiant ML370 G4 with ProLiant Support Pack 7.40B.<BR />After restarting the server, I wasn't able to ping or connect to another Domain Controller on the internal network. In the System Event Log I saw many DCOM 10009 errors (unable to connect to computer...).<BR />Installation of PSP 7.40B changed the driver of one of the two NICs in teaming from NC7781 to NC7771.<BR />Changed the driver of the NIC to the correct one, rebooted the server and all was OK. Wed, 08 Mar 2006 12:27:27 GMT https://community.hpe.com/t5/server-management-systems/dcom-error-10009/m-p/3747103#M18946 Ale Tavian 2006-03-08T12:27:27Z