Metamask: Connecting to MetaMask wallet via WalletConnect Web3Modal V2 from mobile browser does not give connect prompt in metamask app

Connecting to MetaMask Wallet via WalletConnect Web3Modal V2 from a Mobile Browser: Troubleshooting Guide

As more people are turning to web wallets and decentralized applications (dApps), the need for seamless connectivity between wallet providers and dApp platforms has increased. A popular solution is to use WalletConnect Web3Modal V2, which allows users to connect their MetaMask wallet directly to various dApp platforms. However, some users have reported issues connecting to MetaMask via WalletConnect in their mobile browser. In this article, we will look at the causes of this issue and provide troubleshooting steps to resolve it.

What is WalletConnect Web3Modal V2?

WalletConnect Web3Modal V2 is a protocol that enables seamless communication between web wallets and dApp platforms. It uses WebSockets to establish a direct connection between the wallet provider (MetaMask) and the dApp platform, enabling secure and efficient transactions.

The Issue: Disconnect Prompt in MetaMask App

When trying to connect to MetaMask via WalletConnect V2 from a mobile browser, users usually encounter a disconnect prompt on their MetaMask app. This issue occurs because the connection is not established properly between the wallet provider and the dApp platform.

Causes of the Disconnect Prompt:

• Incorrect Connection Settings: Make sure you have configured your wallet provider (MetaMask) to use the correct protocol version (v2) for WalletConnect.

• Improper WebSocket Establishment: The connection may not be established properly, resulting in a disconnect prompt.

• Missing or Incorrect JavaScript File

  : Inspect your MetaMask application’s index.html file and make sure it includes the required JavaScript files for WalletConnect.

Troubleshooting Steps:

• Update WalletProvider Library

  : Check if you have updated your wallet provider library (@web3modal/ethereum) to use version 2. If not, update it to v2 to resolve connectivity issues.

• Check Connection Settings: Make sure you are using the correct protocol version (v2) for WalletConnect in your MetaMask application’s settings.

• Inspect WebSocket Establishment: Check if the connection is established correctly by inspecting your MetaMask application’s JavaScript logs. You can do this by adding a console.log statement before establishing the connection:

const supplier = wait window.ethereum.connect('
if (provider) {
console.log('Connection Established:', supplier);
}

• Check the JavaScript file: Inspect the index.html file of your MetaMask application and make sure that it includes the JavaScript files required for WalletConnect (walletconnect.js). You can do this by checking the folder structure of your project.

Sample code:

Here is an example of how you can check the connection parameters in your MetaMask application using JavaScript:

const supplier = wait window.ethereum.connect('
if (provider) {
console.log('Connection Established:', supplier);
} else {
console.error('Failed to connect to WalletConnect.');
}

Conclusion:

Connecting to MetaMask via WalletConnect Web3Modal V2 from a mobile browser can be difficult, especially if you encounter a disconnect prompt. By following the troubleshooting steps outlined in this article, you should be able to resolve connectivity issues and successfully connect your wallet provider to dApp platforms.

Additional Tips:

• Make sure to test your MetaMask app on different devices to ensure the issue is not specific to a particular browser or mobile device.

• If you are still experiencing issues, consider reaching out to the WalletConnect community for further assistance or seeking help from a MetaMask expert.