Working through the vSAN host network configuration, the Quickstart shows hosts not configured in the Add Hosts section. If hosts are added and configured manually prior to using Quickstart, it will alert that the configuration was not configured for those hosts. This is because Quickstart expects that these configurations happen through the wizard.
VMware vSAN (All Versions)
The Quickstart wizard will show the current status of the environment as it sees it configured. Quickstart will post suggestions for the overall vSAN configuration and any failures it encounters from the current setup.
Prior to the vSAN configuration, the Quickstart wizard can be bypassed if the intention is to configure the vSAN manually. If this is the case, the Skip Quickstart button can be used to bypass the Quickstart tool. Otherwise continue with Quickstart wizard to automate the various configurations. Once Quickstart is used to configure the vSAN, it requires future host adds to flow through Quickstart. If future host adds are not done from the Quickstart wizard, the hyperconverged cluster configuration alarm may become active in the cluster. To avoid that, use the Quickstart wizard for future host adds to the vSAN cluster.