the situation

when i was trying to change the network settings of our servers it fails with the error:

C:\Windows\System32\en-US\sconfig.vbs(696, 21) SWbemObjectEx: Invalid index.

the solution

it turned out that i disabled ipv6 previously on that ethernet port. so i enabled it via powershell using the following command (you may have to edit the property “InterfaceAlias”):

Enable-NetAdapterBinding -InterfaceAlias Ethernet -ComponentID ms_tcpip6