Troubleshooting

Troubleshooting

Here are some common issues you may encounter when connecting MetaMask to Arbitrum, and how to resolve them:

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❌ MetaMask Fails to Connect

Symptoms:

• Network doesn’t appear after clicking “Save”

• Connection times out or shows an error

Solutions:

• Double-check that all fields (RPC URL, Chain ID, etc.) are entered exactly as shown

• Make sure there are no extra spaces or typos in the RPC URL

• Try refreshing MetaMask or restarting your browser

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❌ Arbitrum Network Added, But Not Visible

Symptoms:

• You successfully added Arbitrum, but it’s not showing in the network dropdown

Solutions:

• Click the MetaMask icon to re-open it (it may have minimized)

• If needed, go to Settings → Networks to verify that Arbitrum is listed

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❌ Tokens Don’t Show Up

Symptoms:

• ETH is visible, but USDC, USDT, or other tokens are missing

Solutions:

• Add the token manually using its contract address

• You can find verified addresses on Arbiscan Tokens

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❌ Wrong Network Selected

Symptoms:

• You're trying to use Arbitrum dApps, but they say “Wrong network”

Solutions:

• Make sure “Arbitrum One” is selected in MetaMask

• Switch networks manually from the dropdown

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❌ Transactions Not Showing on Arbiscan

Symptoms:

• You made a transaction but can’t find it on Arbiscan

Solutions:

• Confirm you're searching the correct wallet address

• Wait a few seconds—block confirmations may be delayed

• Double-check that you’re viewing the Arbitrum chain, not Ethereum Mainnet

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Still stuck? Join the Arbitrum Discord for help from the community!