request for method 'eth_chainId' failed [Polygon]

[Royal-lobster]

I am trying to connect my app with external wallet using brave to mumbai polygon, but getting this error -

Uncaught (in promise) 
{code: 4001, message: "Request for method 'eth_chainId' on https://rpc.ankr.com/polygon_mumbai failed"}

[shahbaz17]

Hey @Royal-lobster

Have you tried using a different RPC endpoint? It looks like the RPC was down. Please try custom RPC endpoints from providers like infura, quicknode, etc.

[Royal-lobster]

Thanks ! it works after changing RPC endpoint