It seems that the scripts in /ppp profile work only when switching of the state of the ppp interface, disable/enable, and switch conditions of the running/not running do not run scripts. You can add your script in /system script and execute with the desired interval in /system scheduler.
Helmer.Ja answered on June 27th 19 at 15:20
Thanks for the reply!
I have before and it was a script for sedulo run once a minute....