I created a VM in the dashboard, it can not use the web-terminal , telling the error:

Failed to connect to server (code: 1006)

But in my /etc/nova/nova.conf, I think there is no misconfiguration:

[vnc]
enabled = True
vncserver_listen = 0.0.0.0
vncserver_proxyclient_address = 192.168.8.102
novncproxy_base_url = http://45.117.40.168:6080/vnc_auto.html

the 192.168.8.102 is the ha-node2's management-ip.

abd attention my compute node2 also is this node.

And in the /var/log/nova/nova-consoleauth.log, when I turn to this web page, there only this below log:

INFO nova.consoleauth.manager [req-db1e6559-91c4-4412-b908-c323aae1161a - - - - -] Checking Token: bb41fdbe-5cf3-4627-9ba1-7d48849caf22, False