Grpc Client throws Grpc.Core.RpcException (Response protocol downgraded to HTTP/1.1.)

I spend the last three days (Reading Docus, Trying different vesions of VS and .NET, check questions in Stackoverflow, issues in github, ...) about my Grpc client, the server start fine but the client never work, I tried Grpcurl it's works fine but C# client never works and throws Grpc.Core.RpcException here is a smaple:

  HResult=0x80131500
  Message=Status(StatusCode="Internal", Detail="Bad gRPC response. Response protocol downgraded to HTTP/1.1.")
  Source=System.Private.CoreLib

This issue happed in VS2019, VS2022 (Net5, Net6). Is there anything that I can do reagrding this? because we are going to use Grpc on our next project.