# RPC Endpoints Recently the Polygon blockchain has seen unprecedented activity. While it has fared well, the RPC endpoints serving data are often overloaded, due to everyone using the same services. **If you are experiencing erratic site loading, transaction delays/failures, or other unexpected behaviour, you may be experiencing an RPC issue.** In order to improve your experience, you can switch to another RPC server. For Metamask this can be done by navigating to: ``` Settings > Networks > (Your Polygon Network) ``` From there, update the *New RPC URL* value. {% hint style="info" %} Note: switching RPC endpoints does not impact your wallet's funds. They are safe and untouched. {% endhint %} Alternative RPC servers: * Official RPC servers can be found in the [Polygon documentation](https://docs.matic.network/docs/develop/network-details/network/). * * * * * The Chain ID is always 137: do not change this, or any of the other settings. You may edit the existing Polygon MATIC network connection, or add a new network such as "Polygon 2". After updating the RPC address, confirm whether you are able to connect to Polygon and that your balance(s) display correctly. ​ ​ --- # Agent Instructions: 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://docs.polycat.finance/help/rpc.md?ask= ``` 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.