With multiple network adapters and/or multiple IP addresses, AIDA64 may not show the proper IP Address. It all depends on the index that is assigned to the adapter when it is installed. Windows does have a Metric value at the TCP/IP layer for signifying priority. A possible fix for this is to get all IP available addresses with their Metrics and sort by the Metric value (smaller value has higher priority with Metric 1 being the highest). With this change, the user would then be able to specify which IP Address is primary (The one with the highest Metric). I noticed this issue by having my LAN NIC and a VirtualBox Host-Only NIC in my system. Windows reports the IP for the VirtualBox NIC as my Primary IP Address which is wrong. If I disable the VirtualBox NIC, then Primary IP Address displays correctly. I suspect AIDA64 is only getting the Primary IP Address using a single Windows API call. If this is the case, then this is lazy coding on Microsoft's part.