2 out of 4 Health Probes not healthy

Wim Knol 1 Reputation point
2020-11-13T22:45:36.39+00:00

I created an Azure Application Gateway.
There are 4 sites, 4 listeners, and 4 rules. I created an NSG and it's associated 1 separate subnet.

When I check the sites with Backend Health are sites are healthy.

When I use PowerShell
Get-AzApplicationGatewayBackendHealth -Name "MyApplicationGateway" -ResourceGroupName "Myrecourcegroup" all 4 sites are healthy.

When I use CLI
az network application-gateway show-backend-health --resource-group "my resource group" --name "My application Gateway" all 4 sites are healthy

However
When I check the probes with check health probes, 2 health probes are healthy, and 2 are not. I get the message to check the NSG or firewall.

What am I doing wrong?

Azure Application Gateway
Azure Application Gateway
An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.
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