Solo Mining on Windows (AMD and NVIDIA)

This guide covers solo mining Lethean on Windows using the ProgPoWZ algorithm. It works with both AMD and NVIDIA GPUs.

The Lethean daemon includes a built-in stratum-like server that serves miner clients via the ethProxy protocol. It acts as a lightweight, single-address pool for solo mining.

Prerequisites

The Lethean desktop app or CLI binaries installed
A Lethean wallet with a receive address
A GPU with at least 2 GB VRAM (AMD or NVIDIA)

If you have not yet set up a wallet, see the Wallet Guide.

Step 1: Set Up the Lethean Node

Install the Lethean app, open the wallet, and wait for blockchain synchronisation to complete.
Once synced, close the app.
Locate your Lethean node executable (lethean-chain-node.exe). By default, it is in C:\Program Files\Lethean.

Step 2: Download and Configure TT-Miner

TT-Miner supports the ProgPoWZ algorithm and works with both AMD and NVIDIA GPUs on Windows.

Go to the TT-Miner GitHub releases page and download the latest .ZIP file.
Extract it to a folder on your computer.
In the extracted folder, create a new text file named start-lethean-mining and paste the following content:

rem starts lethean with the stratum server activated
start "" "C:\Program Files\Lethean\lethean-chain-node.exe" --stratum --stratum-miner-address=YOUR_WALLET_ADDRESS --stratum-bind-port=11555

rem TT commandline
start TT-Miner.exe -luck -c LTHN -P miner@127.0.0.1:11555
pause

Replace YOUR_WALLET_ADDRESS with your actual Lethean wallet receive address (starts with iTHN).
If your Lethean installation is not in the default location, update the path to lethean-chain-node.exe accordingly.
Save the file as start-lethean-mining.bat (in Notepad: File > Save As, then append .bat to the filename). This makes it executable.

Step 3: Start Mining

Double-click start-lethean-mining.bat to launch both the Lethean node (with stratum enabled) and TT-Miner.

Verify that both windows show activity:

The daemon window should show synchronisation and stratum connections
The TT-Miner window should display your hashrate and share statistics

If lethean-chain-node.exe fails to start, ensure no other instance is running and that the Lethean desktop wallet is closed.

You are now solo mining Lethean on Windows using the ProgPoWZ algorithm.

Step 4 (Optional): Start Miner on Boot

To have mining start automatically when Windows boots:

Press Win + R to open the Run dialogue.
Type shell:startup and press Enter. The Startup folder will open.
Go to your TT-Miner folder, right-click start-lethean-mining.bat, and select Create Shortcut.
Move the shortcut into the Startup folder.

The script will now execute each time your PC starts.

Remember that to open the Lethean desktop wallet, you must first close all lethean-chain-node.exe instances.

Pool Mining Alternative

For pool mining, modify the batch file to point TT-Miner at the pool's stratum address instead of 127.0.0.1:11555:

start TT-Miner.exe -luck -c LTHN -P <YOUR_WALLET_ADDRESS>@<POOL_STRATUM_ADDRESS>:<PORT>

Check the Mining Overview for more details on pool vs solo mining.

Troubleshooting

Problem	Solution
Daemon fails to start	Ensure no other `lethean-chain-node.exe` is running; close the desktop wallet
TT-Miner cannot connect	Check that the daemon has fully synced and the stratum port matches
Low hashrate	Ensure your GPU drivers are up to date; check GPU temperature and power settings
No blocks found after extended mining	Solo mining depends on your hashrate vs network difficulty -- consider pool mining

Visit our Mining-Talk channels on Discord and Telegram for further assistance. Happy mining!