Users not able to login when system is configured for sss authentication

Issue

When a system is configured for sss authentication users are not able to login. You are seeing the errors below in /var/log/messages and /var/log/secure.

/var/log/messages

Jul 28 16:26:50 EXAMPLE id: nss_ldap: failed to bind to LDAP server ldap://127.0.0.1: Can't contact LDAP server
Jul 28 16:26:50 EXAMPLE id: nss_ldap: reconnecting to LDAP server (sleeping 16 seconds)...
Jul 28 16:27:06 EXAMPLE id: nss_ldap: failed to bind to LDAP server ldap://127.0.0.1: Can't contact LDAP server
Jul 28 16:27:06 EXAMPLE id: nss_ldap: reconnecting to LDAP server (sleeping 32 seconds)...
Jul 28 16:46:51 EXAMPLE crontab: nss_ldap: failed to bind to LDAP server ldap://127.0.0.1: Can't contact LDAP server
Jul 28 16:46:51 EXAMPLE crontab: nss_ldap: failed to bind to LDAP server ldap://127.0.0.1: Can't contact LDAP server

/var/log/secure

Jul 28 16:27:34 EXAMPLE sshd[5630]: nss_ldap: failed to bind to LDAP server ldap://127.0.0.1: Can't contact LDAP server
Jul 28 16:27:34 EXAMPLE sshd[5630]: nss_ldap: reconnecting to LDAP server (sleeping 32 seconds)...
Jul 28 16:28:06 EXAMPLE sshd[5630]: nss_ldap: failed to bind to LDAP server ldap://127.0.0.1: Can't contact LDAP server
Jul 28 16:28:06 EXAMPLE sshd[5630]: nss_ldap: reconnecting to LDAP server (sleeping 64 seconds)...