hello every1! I have a private nodes gke cluster with private endpoint that I'm trying to import to rancher v2.6.3. There's connectivity between the nodes' network and the rancher API, so the cattle-cluster-agent can contact our Rancher. But when I try to make the import the cluster agent gets stuck in this part:

time="2022-11-15T19:15:22Z" level=info msg="Connecting to <wss://rancher-tv.corporativo.pt/v3/connect/register> with token starting with 5hc2nf4tpwcpcwgkqhx2hfxwsdx"
time="2022-11-15T19:15:22Z" level=info msg="Connecting to proxy" url="<wss://rancher-tv.corporativo.pt/v3/connect/register>"

So my question is… The GKE masters also need to connect to the rancher server? 'Cause I've eliminated everything else.