I have freeradius setup on SLES 12 SP3. Just attempted an upgrade to SP4 using zypper and no one could login afterwards. Dug through logs, but I could not find the issue. Rolled back to my prior snapshot and all is good again. So before I attempt this again, just thought I would check and see if there are any known changes or gotchas with SP4 and freeradius. Or suggestions for where to look for the problem in case I wasn't checking the right places.