Hello! For about two weeks, I am using 3CX (4SC, Standard) on a small Debian Server with the provided ISO. While I am very happy with the configuration and features, the stability has been... insufficient. At first, I tested 3CX on my personal computer to see if I am able to configure everything before actually buying hardware. I used the free version, but after some reboots I noticed that I can no longer call anyone or be called - every phone said "declined", from outwards I get the "temporarily unavailable" message. In the frontend log incoming calls appear as missed, both internal and external calls. After another reboot, everything was working instantly again, so I didn't give it any more thoughts. Unfortunately, the problems reoccur with what I felt to be like every 3rd reboot. I even reinstalled everything twice, set it up from scratch (no backups used) to eliminate one-time installation errors. The problems are the exact same: If the machine is restarts, there is a high chance that everything stops working after the boot is completed. Internal calls are affected as well as external calls. My two SIP Trunks as well as all the phones show up as registered. The Yealink T46S are also showing green BLFs for the extensions during any time. Does someone know how this problem can be solved? I would like to provide additional log files, however, I do not know where to find them so maybe someone can show me under which location they are saved so I can provide additional information. Thank you!