Git For Windows Curl -43- A Libcurl Function Was Given A Bad Argument Jun 2026

Got another weird Git + curl error? Drop it in the comments — I’ve probably debugged it.

Developers using Docker Toolbox (not Docker Desktop) often map ports to 192.168.99.100 . Using curl https://192.168.99.100:8443 failed with error 43 because the Docker VM advertised HTTP/2 but lacked proper ALPN support. Switching to --http1.1 solved it. Got another weird Git + curl error

After running this command, try your git clone , git push , or `git try your git clone