I am configuring a Custom Domain for ApiGateway. I created two subdomains, one for the Application Load Balancer and one for the ApiGateway. I imported a wildcard certificate on ACM for the two subdomains.
When I create a Custom Domain on ApiGateway and call the associated DNS I get the error "ERR_SSL_VERSION_OR_CIPHER_MISMATCH".
ERR_SSL_VERSION_OR_CIPHER_MISMATCH Error
The Application Load Balancer using the same certificate and it works.
When I call the ApiGateway with its DNS and it works. During the TLS handshake I get:
When I call the ApiGateway with ApiGateway Custom Domain during the TLS handshake I get:
ApiGateway CustomDomain TLS Handshake
It would appear that I am using a different version of TLS however in the CustomDomain I have set version 1.2
ApiGateway CustomDomain (I censored the domain)
What could be the error?
I expect to call the CustomDomain of the ApiGateway and get the correct response as I get it by calling the Application LoadBalancer.
