Proxy

git clone fails with “could not resolve proxy.” apt update hangs forever. curl returns “Could not resolve proxy: 127.0.0.1.” You know the proxy is running on Windows — so why can’t WSL see it? Quick fix: In WSL’s default NAT mode, 127.0.0.1 refers to WSL itself, not your Windows host. Switch to mirrored networking in .wslconfig and the proxy becomes reachable at localhost. If you can’t use mirrored mode, point your proxy to the Windows host IP instead of 127.0.0.1. ...

You open WSL and there it is again: “An HTTP proxy change has been detected.” Sometimes it’s just a warning, sometimes your git clone, npm install, or apt update straight-up fails because WSL can’t reach the internet through your proxy. Quick fix: This warning means your Windows proxy settings changed and WSL hasn’t caught up. The permanent solution is to enable mirrored networking + autoProxy in .wslconfig. Create or edit C:\Users\YourUsername\.wslconfig: ...

Seeing the dreaded “localhost proxy configuration detected but not mirrored to WSL” warning every time you start WSL? Your Windows proxy (like Clash, V2Ray, or any local proxy on 127.0.0.1) can’t reach WSL because NAT mode isolates their localhost addresses. The fix is simple: switch WSL to mirrored networking mode. Quick fix: Create or edit C:\Users\YourUsername\.wslconfig and add networkingMode=mirrored + autoProxy=true under [experimental]. Then run wsl --shutdown and restart. Done — your proxy now works inside WSL automatically. ...

A proxy is an intermediary server that sits between a client and a destination server. If you’re having trouble with proxies inside WSL, see our series of WSL proxy fixes: localhost proxy not mirrored, HTTP proxy change detected, and could not resolve proxy. If you’re a developer who needs to set Git-specific proxies (for GitHub access), see How to set Git proxies on cnelecar. For general network troubleshooting, check our all-in-one network fix guide and how to fix browsers showing no internet. ...