VMs under VxRail loses network connectivity randomly

We have VxRail cluster (4.7.300) where almost all of the VMs are losing network connectivity randomly for few seconds and then it comes right back on its own. Guest OS remains available but you can't ping in and out of this VM. It is using distributed switch and it is also on its latest code.

I have seen VM not being able to ping another VM which is on the same host, same network, same vLAN, same subnet.

VMs have the latest VMWare tools installed and using latest version of vmxnet3 network adapter. Hosts are also on its latest version of ESXi.

Any clue?