Bitcoin Core No Block Source Available: Causes and Solutions

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Bitcoin Core is a popular software for managing Bitcoin transactions, but users may encounter the error \“no block source available\“. This issue typically arises when the software cannot connect to peers to download the blockchain. Common causes include network connectivity problems, firewall restrictions, or outdated software versions.

To resolve this, ensure your internet connection is stable and check firewall settings to allow Bitcoin Core. Updating to the latest version of Bitcoin Core can also help, as it includes fixes for peer discovery. Additionally, adding manual nodes or using a VPN might improve connectivity if your ISP is blocking ports.

If the problem persists, consider resetting the blockchain data or seeking help from the Bitcoin community forums. Regularly maintaining your Bitcoin Core setup can prevent such errors and ensure smooth operation.