How to Add an NSG Rule to an Azure VM (ARM)

1) Navigate to the Azure Portal
2) Select  Virtual Machines
3) Click on the impacted VM
4) Click on Network Interfaces
5) Click Network Security Group

6) Select the Network security group listed
7) Click Inbound Rules

8) Click Add
9) Click on the Advanced Settings

10) Name the new rule
11) Set the Priority of the Rule
12) Set the Source Port Range. Often this will be left as an * to allow all
13) Set the destination port or port range
14) Click OK
15) The result should look something like this: