Will infura limit a certain Ip?

Hi folks, I have a question, Something from infura block me when i try to use “{“jsonrpc”:“2.0”,“method”:“eth_newBlockFilter”,“params”:[],“id”:2}” to filter block on my aws machine. But another machine with the same command works well.
I mean , Will infura limit a Ip ?

Are you using our websocket API? We only support the stateful methods like newBlockFilter via our websocket interface. https://infura.io/docs/ethereum/wss/eth_newBlockFilter

yes,it is. but i don’t know why

Can you provide the code snippet from where you’re calling the method and the error response you’re receiving?