> For the complete documentation index, see [llms.txt](https://polycow-finance.gitbook.io/polycow/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://polycow-finance.gitbook.io/polycow/security/faq.md).

# FAQ

{% hint style="info" %}
This page will be updated as the community has doubts that we can resolve here in more detail. Do not hesitate to ask in our [Telegram group](https://tm.me/polycow-finance)!
{% endhint %}

## 1. Confirm/swap/deposit/withdraw failed. What should I do? <a href="#id-1-what-should-i-do-if-confirm-swap-deposit-withdraw-failed" id="id-1-what-should-i-do-if-confirm-swap-deposit-withdraw-failed"></a>

* Step 1: Check the RPC url in MetaMask setting

If the RPC URL is [https://rpc-mainnet.maticvigil.com](https://rpc-mainnet.maticvigil.com/), please change PRC in your Metamask to one of below:

* [https://rpc-mainnet.matic.quiknode.pro](https://rpc-mainnet.matic.quiknode.pro/)
* [https://matic-mainnet.chainstacklabs.com](https://matic-mainnet.chainstacklabs.com/)
* [https://matic-mainnet-full-rpc.bwarelabs.com](https://matic-mainnet-full-rpc.bwarelabs.com/)
* [https://matic-mainnet-archive-rpc.bwarelabs.com](https://matic-mainnet-archive-rpc.bwarelabs.com/)​

Step 2: If the TX fail, increase gas (5gwei and 500000 gas limit) in the MetaMask confirmation panel

* Step 3: If swap fail on exchange, set slippage to 1-2% and try again
* Step 4: Check the [polygonscan](https://polygonscan.com/blocks) whether it's congested

If the "Gas Used" is all 99.9%, it means the polygon network is congested, so please increase gas a bit in Step 2, and try again later.

![](/files/-Me2Wpn71Jl1Vj19HbmC)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://polycow-finance.gitbook.io/polycow/security/faq.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.