Standalone Service Fabric TestConfiguration.ps1 Config validation: certificate [xx] is not installed on node [ip] under My.

Question

I'm Trying to setup a multimachine standalone service fabric required for D365 F&O On-Premises,
it consists of 7 VMs existing on 3 IP ranges or subnets and all are joined to the same domain,
all VMs have Windows Server 2019.

The ClusteConfig.json file is generated through a Powershell script that fills all the data needed in it,
I copy it the Service Fabric Package installation folder, but when I run the TestConfiguration.ps1 I get the following Error

Config validation: Certificate [common name] is not installed on node [ip] under My. check the node availability, certificate installation, and the remote certificate store read permission on the nodes.

I'm 100% sure that the certificate exists on the cert store it is looking in, and it is an SSL self signed certificate created during the D365 setup,
as part of my troubleshooting, in the ClusterConfig.json file I replaced the IP of the 1st VM it is trying to reach (which exists on a different subnet), with and IP of a machine that exists on the same subnet, and it did gave me the same error but it passed the validation of the 1st IP (on the same subnet) and gave me an error with the 2nd IP in ClusterConfig.json file.

I know it is a network or ports issue but I can't determine which port it is trying to use or how to approach this.

any help is much appreciated

Thanks,