Can't create new messages

[lazuli307]

I am using kubernetes-kafka on Google GKE 1.12.8. There are two load balancer for external connections, the zookeeper one works, but the kafka one doesn't. The following error always show up.

[Producer clientId=myID] Connection to node 0 (/10.10.0.100:9094) could not be established. Broker may not be available.

Same thing happen with Kafkacat, I can create topic, but not message. It happen to cf-kafka-helm and kafka-helm charts aswell. Beside the load balancers, I am applying as it is from Github. Does it has something to do with GKE?

kafkacat -L -b 22.22.111.111:32400
Metadata for all topics (from broker -1: 22.22.111.111:32400/bootstrap):
1 brokers:
broker 0 at 10.10.0.100:9094