Encounter errors unless running the client using sudo

Hi,
compiled with lastes bazel 3.2

If i run the client without sudo, i will encounter the follow error:
```Client: Loading data...
Client: Generating keys...
Client: Starting the protocol.
Client: Waiting for response and encrypted set from the server...
Client::ExecuteProtocol: failed to StartProtocol: 13: GrpcClientMessageSink: Failed to sen d message, error code: 14, error_message: failed to connect to all addresses
```

However, running with sudo solve the issue.
Do you have any idea to fix this?
Thank you!

No source file or test is named. Start by reproducing the client with and without sudo using the Bazel 3.2 build, then investigate the gRPC connection failure; done means the client starts the protocol and connects without sudo.

Written by the indexing model from the issue text.