RDS Farm status changes to agent not reachable state

Hi We have Horizon environment in which we have RDS hosts that are presented with App  stacks for presenting applications. We are noticing the RDS hosts randomly changes to agent unreachable state. We tried to very the network but we don't have interruption neither in the vcenter there is any registered events.

Just positing to check any one else is facing this issue

Versions

1. Horizonà7.2.0 build-5735293
2. App volumes : 2.12.0.70
3. UEM : 9.1.0.175

Its a Windows 2012 farm.

Please Advice