This bug is created as a clone of upstream ticket:
When SSSD is unable to resolve hostname of a server, it immediately goes to offline mode instead of trying next configured server.
Log file and sssd.conf are attached.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.