For anyone else stuck in the same place - the solution is to attach all NICs to the proxmox VM as VMXNET3 type not VirtIO. The VirtIO is shown in the pdf guide and I advised the support team to update it after they gave me a hint on the solution. Guide is here https://www.starwindsoftware.com/resour...

thank you . will do

hi all, I am seeing exactly the same issue. Is there any general solution about this please? This seems to be caused by either the qcow2 disk image or by the configuration. But I triple checked all steps from this guide and still not getting anywhere sadly. I am trying to setup 3 node cluster so I n...