I migrated a couple of websites to another server in my cluster. I've found on both sites that the WordPress Rest API is not working. I've checked the permalinks to reactivate the Rest API to no avail. I've tried rebooting as well as reinstalling from a working backup but still no connectivity. I've even tried migrating one of the sites to the original server but no good.
Has anyone else encountered this issue and is there a workaround.