Why sometimes "too many requests" error is raised?

[copyNdpaste]

I checked snapshot proposals every minute by using aws lambda and the "too many requests" is raised so I changed 1 minute to 3 minutes but error is still not disappeared.

How to solve it?

[ChaituVR]

Queries are capped per IP, 64 requests max in 16 seconds
https://github.com/snapshot-labs/snapshot-hub/blob/master/src/helpers/rateLimit.ts

[copyNdpaste]

But I think I am not sending more than 64 requests in 16 seconds.
My lambda function is scheduled on each 3 minutes.

[ChaituVR]

The rate limit is based on the IP address, maybe some other lambda function got the same IP address and caused this rate limit? Is there a way to generate a new IP address on AWS, not 100% sure but maybe something like the below could help
https://docs.aws.amazon.com/prescriptive-guidance/latest/patterns/generate-a-static-outbound-ip-address-using-a-lambda-function-amazon-vpc-and-a-serverless-architecture.html