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Troubleshooting connection issues on Google Cloud

The firewall in Google Cloud can block access to your VM. If this occurs, add a firewall rule to allow RDP and SSH access to your VM instances.

When Google Cloud blocks access, the runtime environment fails to start with the following error:

Connection Failed. We are unable to connect to the VM on port 22.

In the Google Cloud console, go to the

Firewall Rules

page.

Click

Create firewall rule

Create a firewall rule with the following settings:

Setting	Value
Name	Enter a name for the firewall rule. For example: allow-ingress-from-iap(<name>)
Direction of traffic	Ingress
Action on match	allow
Target	All instances in the network
Source filter	IP ranges
Source IP ranges	35.235.240.0/20
Protocols and ports	Select TCP and enter 22,3389 to allow both RDP and SSH.