Quick Facts
• METAMASK ERROR: CHAIN NOT ADDED: A common issue where Metamask fails to recognize the network you’re trying to connect to.
• Restart your browser and relaunch Metamask, ensuring the extension is updated to the latest version.
• Verify that the network you’re trying to connect to is supported by MetaMask, check the official list of supported chains.
• Check for any firewall or antivirus software blocking Metamask’s connection to the Blockchain.
• Ensure your network is properly configured and the RPC endpoint is correct (e.g., https://mainnet.infura.io/v3/YOUR_PROJECT_ID for Ethereum Mainnet).
• Try switching to a different network, if you’re trying to connect to a testnet, try the mainnet, or vice versa.
• Restart your computer or try a different device to isolate the issue.
• Clear browser extensions’ data and storage, or try a private browsing session.
• Update your provider settings in Metamask, or try a different provider (e.g., Infura, Alchemy, etc.).
• Check Metamask’s Logs for any errors or warnings that might indicate the cause of the issue (Settings > Advanced > View Logs).
Fixing the “Chain Not Added” Error in MetaMask
MetaMask is a popular cryptocurrency wallet that allows users to interact with the Ethereum blockchain. However, some users may encounter the “Chain Not Added” error when trying to add a new network to their wallet. In this article, we will explore the possible causes of this error and provide step-by-step instructions on how to fix it.
Understanding the Error
Before we dive into the solutions, let’s take a closer look at what causes the “Chain Not Added” error. This error typically occurs when MetaMask is unable to connect to the blockchain network you’re trying to add. This can happen for a number of reasons, including:
* Network configuration issues
* Incorrect blockchain parameters
* Outdated MetaMask version
To fix the error, we need to identify the root cause and take corrective action. Let’s explore the possible solutions.
Possible Solutions
Here are some possible solutions to the “Chain Not Added” error:
* Check your network configuration
* Update MetaMask to the latest version
* Verify blockchain parameters
* Reset MetaMask settings
Checking Network Configuration
To check your network configuration, follow these steps:
1. Open MetaMask and click on the “Add Network” button.
2. Enter the network details, including the RPC URL, chain ID, and currency symbol.
3. Make sure the network details are correct and match the blockchain you’re trying to add.
| Network | RPC URL | Chain ID | Currency Symbol |
|---|---|---|---|
| Ethereum Mainnet | https://mainnet.infura.io/v3/ | 1 | ETH |
| Binance Smart Chain | https://bsc-dataseed.binance.org/ | 56 | BNB |
Updating MetaMask
Updating MetaMask to the latest version can also resolve the “Chain Not Added” error. To update MetaMask, follow these steps:
1. Open the Chrome web store and search for MetaMask.
2. Click on the “Update” button to install the latest version.
3. Restart your browser and try adding the network again.
Here are some benefits of updating MetaMask:
* Improved security: The latest version of MetaMask includes security patches and updates to protect your wallet.
* New features: The latest version of MetaMask may include new features and improvements to the user interface.
* Bug fixes: The latest version of MetaMask may include bug fixes and performance improvements.
Verifying Blockchain Parameters
Verifying blockchain parameters is also important to resolve the “Chain Not Added” error. To verify blockchain parameters, follow these steps:
1. Check the blockchain documentation to ensure you have the correct parameters.
2. Verify the RPC URL, chain ID, and currency symbol.
3. Make sure the blockchain parameters match the network you’re trying to add.
Here’s an example of how to verify blockchain parameters for the Ethereum Mainnet:
* RPC URL: https://mainnet.infura.io/v3/`
* Chain ID: 1
* Currency Symbol: ETH
Resetting MetaMask Settings
If none of the above solutions work, you may need to reset MetaMask settings. To reset MetaMask settings, follow these steps:
1. Open MetaMask and click on the “Settings” button.
2. Scroll down to the “Advanced” section and click on the “Reset Account” button.
3. Confirm that you want to reset your account.
Here are some things to keep in mind when resetting MetaMask settings:
* Backup your wallet: Before resetting MetaMask settings, make sure to backup your wallet to prevent losing your funds.
* Re-enter network details: After resetting MetaMask settings, you’ll need to re-enter your network details.
* Re-import accounts: After resetting MetaMask settings, you’ll need to re-import your accounts.
Frequently Asked Questions:
FAQ: Fixing the “Chain not added” Error in MetaMask
Q: What does the “Chain not added” error mean in MetaMask?
A: The “Chain not added” error in MetaMask occurs when your wallet has not been configured to connect to a specific Ethereum network (e.g. Ethereum Mainnet, Ropsten Testnet, etc.).
Q: Why am I getting this error?
A: You may be getting this error if:
* You have recently updated your MetaMask browser extension and the chain has not been re-added.
* You are trying to access a different Ethereum network that has not been added to your MetaMask wallet.
* Your MetaMask wallet is not properly configured to connect to the desired Ethereum network.
Q: How do I fix the “Chain not added” error in MetaMask?
1. Check your network selection
A: Make sure that you are selecting the correct Ethereum network in MetaMask. To do this, click on the three horizontal lines in the top right corner of the MetaMask interface, then select “Settings” and “Network”. Ensure that the network you want to connect to is selected.
2. Re-add the chain
A: Try re-adding the chain by clicking on the three horizontal lines in the top right corner of the MetaMask interface, then selecting “Settings” and “Add Chain”. Enter the following information:
* Chain ID: [Insert the chain ID for the Ethereum network you want to connect to (e.g. 1 for Ethereum Mainnet, 3 for Ropsten Testnet)]
* RPC URL: [Insert the RPC URL for the Ethereum network you want to connect to (e.g. `https://mainnet.infura.io/v3/YOUR_PROJECT_ID`)]
* Chain Name: [Insert the name of the Ethereum network you want to connect to (e.g. “Ethereum Mainnet”)]
* Symbol: [Insert the symbol for the cryptocurrency associated with the Ethereum network you want to connect to (e.g. “ETH”)]
3. Check your MetaMask version
A: Ensure that you are running the latest version of MetaMask. You can check for updates by clicking on the three horizontal lines in the top right corner of the MetaMask interface, then selecting “Help” and “Check for updates”.
4. Try restarting MetaMask
A: Try restarting MetaMask by closing and reopening the browser extension.
Q: What if none of these steps work?
A: If none of the steps above resolve the issue, you may want to try resetting your MetaMask wallet or seeking help from the MetaMask support team.

