Vault-agent stuck in loop retrying to connect to vault

hi
we have vault on k8s and sometime when we deploy for example 100 pods , one or more not all the vault-agent in the init container inside pod its stuck in a loop retrying to authenticate with vault.
95% of the pods in deployments succeed .

here is the log:
ERROR] auth.handler: error authenticating: error=“Put https://vault-staging.vault:8200/v1/auth/kubernetes/login: dial tcp 10.0.5.231:8200: i/o timeout” backoff=1.3801462199999999

and pod never terminate and its make to deployments to be stuck also

we are using vault version 1.1.3

solved beed to use aws-cni 1.4.0 minimum