diff --git a/Instructions/Labs/LAB_04-Implement_Virtual_Networking.md b/Instructions/Labs/LAB_04-Implement_Virtual_Networking.md
index 4d6269db..77f4fbb6 100644
--- a/Instructions/Labs/LAB_04-Implement_Virtual_Networking.md
+++ b/Instructions/Labs/LAB_04-Implement_Virtual_Networking.md
@@ -111,6 +111,13 @@ In this task, you will deploy Azure virtual machines into different subnets of t
 
     >**Note**: Wait for the deployment to complete before proceeding to the next task. This should take about 2 minutes.
 
+    >**Note**: If you got an error stating the VM size is not available in the region, follow the following steps:
+    > 1. Click on the `{}` button in your CloudShell, select the **az104-04-vms-loop-parameters.json** from the left hand side bar and take a note of the `vmSize` parameter value.
+    > 1. Check the location in which the 'az104-04-rg1' resource group is deployed. You can run `az group show -n az104-04-rg1 --query location` in your CloudShell to get it.
+    > 1. Run `az vm list-skus --location <Replace with your location> -o table --query "[? contains(name,'Standard_D2s')].name"` in your CloudShell.
+    > 1. Replace the value of `vmSize` parameter with one of the values returned by the command you just run.
+    > 1. Now redeploy your templates by running the `New-AzResourceGroupDeployment` command again. You can press the up button a few times which would bring the last executed command.
+
 1. Close the Cloud Shell pane.
 
 #### Task 3: Configure private and public IP addresses of Azure VMs