Quickly Fix \\\"wsl: localhost proxy configuration detected but not mirrored to WSL. WSL in NAT mode does not support localhost proxy.\\\"

Quickly Fix \"wsl: localhost proxy configuration detected but not mirrored to WSL. WSL in NAT mode does not support localhost proxy.\"

Previously, we published a blog post about fixing the 0x80071772 error when installing WSL applications. Today, we’re tackling another common WSL error - “wsl: localhost proxy configuration detected but not mirrored to WSL. WSL in NAT mode does not support localhost proxy.” Cause Analysis Many users run certain software on Windows that requires modifying the system proxy settings, which can trigger this error in WSL. Here’s the specific reason: Your Windows host has a local proxy set up, such as 127.0.0.1:1080, but this proxy configuration is not properly mirrored into the Linux subsystem inside WSL. Under WSL’s NAT network mode, localhost (127.0.0.1) is isolated between WSL and the Windows host. ...

April 28, 2025 · 3 min · 437 words · Louis