VxRail deployment - Unable to query the DPU for the primary node

Hello,

During the deployment of a VxRail cluster, i'm facing an issue on the node where VxRail manager is installed.
Basically my two nodes are getting discovered, but i get an error on the one hosting the VxRail Manager saying "Unable to query the DPU for the primary node".

Here are the related journal logs i could find:

I have connectivity between VxRail manager and the 2 nodes, on their management interfaces and ILOs.
I already tried rebooting the primary node, restarting services (platformsvc).

An important point to note is that i already managed to get to the end of the wizard, to the "Validate the configuration" step. During this, i got a couple of errors (most of them were an easy fix), but then i realised that my Management network configuration on each ESXi node got swept. (Management IP, VLAN, DNS, Gateway...)

If anyone has an idea of what could be the problem i would be grateful.
Thanks a lot