The Loopback Adapter is considered "legacy hardware" and must be added manually through the Device Manager. How to create a Microsoft loopback adapter in Windows 11
: Press Win + R , type hdwwiz.exe , and hit Enter. microsoft loopback adapter windows 11
| Feature | Loopback Adapter | Localhost (127.0.0.1) | |---------|------------------|------------------------| | Layer | Virtual hardware (Layer 2) | Software-only (Layer 3) | | IP assignment | Any static IP you choose | Fixed to 127.0.0.0/8 | | MAC address | Yes (randomized) | No | | App compatibility | Works with apps requiring a real NIC | Fails for apps that bind to a specific interface | | Bridging | Can be bridged with physical NICs | Cannot be bridged | The Loopback Adapter is considered "legacy hardware" and
: Safely test network-dependent software (like web servers or databases) on a local machine without exposing them to a real network. microsoft loopback adapter windows 11