On-Chain | Frequently Asked Questions

What is a gas fee?

A gas fee is a payment made by users to cover the computational energy required to process and validate transactions on a blockchain network.

What factors influence the gas fee? 

The complexity of the transaction and the current network congestion affect the gas fee.

Why are gas fees important?

Higher gas fees can prioritize transactions, ensuring faster processing, while lower fees may result in slower transaction times. Customizing gas fees allows users to manage costs and timing effectively.

What is a gas limit?

This is the maximum amount of gas a user is willing to spend on a transaction. Setting an appropriate gas limit ensures that the transaction has enough computational power to complete without running out of gas.

How does the gas fee affect transaction priority?

Transactions with higher gas fees are typically processed faster because miners are incentivized to include transactions that offer higher rewards.

What is the difference between gas price and gas limit? 

Gas price is the amount you're willing to pay per unit of gas, while the gas limit is the maximum amount of gas you’re willing to spend on a transaction.

Can I customize my gas fee? 

Yes, you can customize your gas fee by setting the gas price and gas limit to manage costs and transaction speed.

What happens if I set my gas fee too low? 

If the gas fee is too low, your transaction may be delayed or not processed at all, especially during high network congestion.

Why did my transaction take a long time to be mined, even though it was signed successfully?

Blockchain network fees can fluctuate rapidly. If a transaction is created when fees are low, but signed and broadcast later when fees have increased, it may become underpriced and stay pending until network conditions improve.

Even for internal transfers between vaults, the transaction is still processed on a public blockchain and subject to the network’s fee dynamics.

⚠️ Important note: If a transaction is stuck due to a low gas fee (or is otherwise pending), it can block subsequent transactions on the same blockchain from being processed or mined.
👉 To resolve this, check your wallet activity on a block explorer (Etherscan, Polygonscan, etc.) and consider speeding up or cancelling the pending transaction to unblock the others.

How to prevent or fix delays

• When creating transactions: broadcast them shortly after signing and, if needed, use the custom fee option to adjust gas/fees during busy network periods.

• If a transaction is already pending: speed it up (replace with higher gas) or cancel it from your wallet to ensure subsequent transactions can be mined.

• If delays keep happening: reach out — we’re happy to assist.

Where to check my wallet’s transaction activity ?

You can check your wallet’s activity in two ways:

Once you’ve selected your vault, you can check wallet activity directly from the dashboard. Next to each asset, click the “open in explorer” button (↗) to view your wallet’s activity on the relevant blockchain explorer.

You can copy your wallet address and check it directly on the appropriate explorer.

Supported Networks on io.vault & Their Block Explorers:

Where can I check current gas fees? 

You can check current gas fees on blockchain explorers like https://mempool.space which provide real-time data on network congestion and fee estimates.

Why do I see unfamiliar tokens / transaction in my io.vault ?

These are most likely unsolicited or “spam” tokens, often sent by automated systems when your vault address becomes active on-chain — for example, after you send or receive a transaction.

Important: These tokens do not indicate a breach of your wallet.
They appear in your vault simply because they were publicly transferred on-chain to your address — similar to how spam emails appear in your inbox, even though you didn’t ask for them.
However, many of these tokens can be malicious. They are frequently designed to trick users into interacting with dangerous smart contracts, phishing sites, or scam URLs.

Best Practices:
- Do not approve, swap, or transfer any token you don’t recognize.
- Avoid clicking on links or QR codes associated with these tokens.
- Ignore token names or metadata that try to grab your attention or promote offers.
If you're ever unsure, reach out to our support team before taking any action. We're here to help.

Why is my Tron address "inactive"?

TRON addresses must be activated on-chain before they can receive TRC-20 tokens like USDT. While we can generate and display a valid TRON address off-chain via "Manage Assets", it won’t exist on the TRON blockchain until it receives TRX token. 

On-chain activation typically burns 1 TRX to create the account, and may require an additional 0.1 TRX if the sender lacks free bandwidth. Until this happens, any attempt to send TRC-20 tokens to the address will fail.

We recommend sending at least 1-2 TRX to activate the address and cover initial network fees, ensuring the address can reliably receive TRC-20 tokens.

I am having an issue with Aave, what should I do?

1. Unexpected Disconnections
   1. Description: Occasionally, users experience unexpected disconnections from Aave. The connection drops without any apparent reason.
   2. Occurrence: Rare.
2. Inability to Reconnect
   1. Description: In some rare cases, users are unable to reconnect to Aave. After initiating the session with Wallet Connect and entering the code in io.vault, the session briefly connects but then disconnects almost immediately. The Aave header displays the wallet address for 1-2 seconds before reverting to the "Connect" button.
   2. Occurrence: Even rarer.

1. Clear Cache and Cookies
   1. Steps
      1. Go to your browser settings.
      2. Navigate to the section where you can clear browsing data.
      3. Select the option to clear cookies and cache.
   2. Ensure you specifically clear data related to Aave.
2. Recreate the Session
   1. Steps:
      1. After clearing the cache and cookies, return to Aave.
      2. Initiate a new session with Wallet Connect.
      3. Enter the code in io.vault as prompted.
   2. Verify the connection stability by ensuring the wallet address remains visible in the Aave header.

If you continue having issues, please submit a request to our support team here.