netswitch

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A tiny portable tool to flip a Windows network adapter between a static IP and DHCP with a few keystrokes.

Built for the recurring engineer chore of "give my laptop NIC 10.10.10.1 so I can talk to a server's BMC" and "now put it back on DHCP so I can have internet again."

Made by engelgardt.

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Download

Grab the latest release: releases page. The asset is netswitch-portable-vX.Y.Z.zip (~30 KB).

Run

1. Unzip anywhere.
2. Double-click netswitch.exe.
3. Accept the UAC prompt (admin is needed for netsh interface ipv4 set address).
4. Pick the network adapter from the list.
5. Choose mode:
   • Static: enter IP (default 10.10.10.1), mask (default 255.255.255.0), gateway (optional).
   • DHCP: just confirms — the NIC reverts to DHCP for both IP and DNS.

What it filters

Only real, wired physical adapters appear in the picker. Wireless, VPN, virtual, Hyper-V, VMware, VirtualBox, TAP/TUN, WireGuard, OpenVPN, Tailscale, ZeroTier, Bluetooth, Loopback, WAN Miniport — all skipped.

Update check

On every launch the tool calls GitHub's /releases/latest (3-second timeout). If a newer version is available, it prints a yellow notice and offers to open the download page in your browser. If you're offline, it stays silent.

Build from source

python -m pip install rich pyinstaller
python -m PyInstaller --onefile --uac-admin --console --name netswitch --icon assets/icon.ico --paths src netswitch-launcher.py

License

MIT — see LICENSE.