and disabeled the CLOCKFIX setting
It is not a "fix", it is an extremely anoying feature that blocks the system clock from being corrected. This can be signicant, if the linux clock is 1s per hour off, you're off by 3 minutes by the end of the week, and in the second week, you'll start missing the beginning of recordings.
Is is needed because one of the authors of Oscam thought it was smart to use realtime for timing loops, instead of synthetic time. And if realtime changes in such a loop, especially time going backwards, the loop may run for much longer, causing Oscam to stop working.
This has been mentioned several times, but was never addessed.
If your box uses NTP to get the time (using either the ntp or the auto setting), removing it is not an issue. If your box runs on transponder time, and you watch transponders that don't keep the correct time, you may have an issue.