Can't login to OpenShift 4 cluster via CLI or Web console

Issue

• Openshift 4 cluster looks suddenly broken, it's impossible to login via CLI or Web console
• The ETCD instances are showing logs about inexistent ETCD DNS names, according to your actual ETCD DNS names:

2020-05-18T11:26:01.829397571Z E0518 11:26:01.829321       1 run.go:67] error looking up self for candidate IP 192.168.3.182: could not resolve member "etcd-3.ocp.example.local."
...
2020-05-18T11:24:31.251872394Z E0518 11:24:31.251793       1 run.go:67] error looking up self for candidate IP 192.168.3.183: could not resolve member "etcd-4.ocp.example.local."