An SD-WAN instance is not deployed if the number of controller nodes specified in the SD-WAN instance template does not match the actual number of controller nodes of the SD-WAN instance.
To select the number of SD-WAN instance controller nodes:
A table of SD-WAN instance templates is displayed.
The settings area is displayed in the lower part of the page. You can expand the settings area to fill the entire page by clicking the expand icon . By default, the Information tab is selected, which displays the name of the SD-WAN instance template.