Pod connectivity to external IP not working

I’ve deployed a 1.19.8 K8s cluster with Juju. Pods are able to ping each other and each of the worker nodes, but they can’t ping anything else. The hosts are able to ping other network devices. The Calico configured shows that outbound NAT is enabled. I previously deployed a 1.18 K8s cluster using the same method, and I did not experience this issue.

Cluster information:

Kubernetes version: 1.19.8
Cloud being used: Canonical K8s local running on VMWare
Installation method: Juju deployment
Host OS: Ubuntu
CNI and version: Calico Rev 757
CRI and version: container 1.3.3