Cannot add Virtual machine in backend pool of Load Balancer stating "You can only attach virtual machines in eastus that have a standard SKU public IP configuration or no public IP configuration. All IP configurations must be on the same virtual network."

In this case, you can randomly disable the public IP address from the virtual machine---network interface---IP Configurations---ipconfig1---disassociate---save. Then you can add the desired VMs to backend pool again.





Do this for rest of the VM Servers wanted to be added in Load Balancer.