Your trouble condition history is interesting. I see dual path failure broadband messages are active almost all the time, but resolve for a period of almost exactly 6 hours here and there.
6 Hours is the default supervision time, so a signal is received from the system, then immediately after it fails communication again.
The first thing I would do is actually reboot the home router.
After, update your panel firmware to 2.7.2 via the steps below:
Qolsys IQ Panel 2 Firmware Release Information - #28 by jwcsurety