Now, i sucessfully created a cluster include 1 master, 3 worker node. All cluster be communicated by Calico CNI

• Master node: I have a IP static public be attach into node (special)

My error:

• I created a pod ubuntu at node worker, then telnet to master node ( IP and 80 port) and sucessful. All pods in the remaining worker nodes can do the same
• But, when i deploy a pod at master node, that pod cannot telnet any IP worker node.

I turned off all ufw in all node but can’t solve this probelem. Does anyone have any solution to help me, I’ve been stuck for 3 days now =((. Thanks
enter image description here

All pod at each node can ping each other node.