Workers crashes after few seconds automatically

My workers nodes and head are running on different vm , i am able to see my workers on dashboard , but after few seconds workers gets killed automatically

1The node with node id: 3428fdc8ee0b2accb9f106e3f63207b3722a65c9f11d6a4d11841d0f and address: and node name: has been marked dead because the detector has missed too many heartbeats from it. This can happen when a (1) raylet crashes unexpectedly (OOM, preempted node, etc.) 2 (2) raylet has lagging heartbeats due to slow network or busy workload.

Please somebody help !!!