check monitors for network load balancer (NLB) pods in cluster &lt;your cluster&gt;...
OK
Hostname                          IP(s)                       Health Monitor   SSL Cert Status   SSL Cert Secret Name                          Secret Namespace
&lt;your ingress gateway hostname&gt;   &lt;your ingress gateway IP&gt;   None             created           &lt;the matching secret name&gt;           istio-system
...
</code></pre><p>Wait until the status of the certificate (the fourth field) of the new domain