the situation is something like this:
1. deploy k3s + pingtest
2. reboot all k3s nodes (i'm using external datastore)
3. wait for k3s.service/k3s-agent.service to startup again.
4. kubectl get pods -n pingtest -o wide
5. kubectl exec -it -n pingtest pingtest-588df6f488-5g9vn -- ping
=> doesnt work
6. systemctl restart k3s.service/k3s-agent.service
7. kubectl exec -it -n pingtest pingtest-588df6f488-5g9vn -- ping
=> works!!!