Load balancing provides a higher level of availability and scale by spreading incoming requests across virtual machines (VMs). You can use the Azure portal to create a Standard load balancer and balance internal traffic among VMs. To load balance successfully between VM1 and VM2 you have to place the html file in the path mentioned in the Probe1 configuration. Reference: https://docs.microsoft.com/en-us/azure/load-balancer/tutorial-load-balancer-standard-internal-portal