Upgrading RHEL compute nodes in RHOCP4 stuck with error - "the server has asked for the client to provide credentials"

Issue

• While upgrading RHEL compute nodes in RHOCP4 using Ansible, the playbook fails with below error.

stderr": "E0420 11:51:29.438991  190279 memcache.go:265] couldn't get current server API group list: the server has asked for the client to provide credentials\nE0420 11:51:29.447616  190279 memcache.go:265] couldn't get current server API group list: the server has asked for the client to provide credentials\nE0420 11:51:29.458001  190279 memcache.go:265] couldn't get current server API group list: the server has asked for the client to provide credentials\nE0420 11:51:29.467343  190279 memcache.go:265] couldn't get current server API group list: the server has asked for the client to provide credentials\nE0420 11:51:29.477559  190279 memcache.go:265] couldn't get current server API group list: the server has asked for the client to provide credentials\nerror: You must be logged in to the server (the server has asked for the client to provide credentials)"