Nothing looks to have changes but a new cluster - for example a 4+1 node AWS cluster starts to degrade in under 24 hours
Previous clusters were OK for weeks
The master.onap.info cluster created 18 days ago is OK

check the usual FS, RAM, etcd
could be https://github.com/rancher/rancher/issues/13176

as other tests
1) letting a 1.6.18 cluster sit empty for 24 hours to verify the same ipsec issue
2) installing onap on the cluster to see if we see the same detached behaviour