@Joseph-TP 

I reboot the BE550 every night at 3:50 a.m. All data traffic from the previous day until midnight is visible in the Tether app under data traffic usage. However, the data traffic from midnight to 3:50 a.m. is no longer visible after the reboot.

Even if, for example, I have data traffic between 9 a.m. and 11 a.m., which is displayed in the Tether app under data traffic usage, and I then reboot the router at 11 a.m., all the data traffic from before the reboot is gone for this day. However, if the router does not have to restart anything, the data traffic after the restart will be displayed correctly until the end of the day.

I can provide screenshots this afternoon or evening (GMT +1).

Best regards

GrenSo

  @Joseph-TP 

Unfortunately, I didn't manage to restart the router yesterday with the screenshots after and before. So, I'm only posting the corresponding screenshots from the Tether app today.

Data traffic usage in Tether App from today before I'm done reboot from the Archer BE550:

Data traffic usage in Tether App from today directly after I'm done reboot from the Archer BE550:

As you can see, the data traffic logged this morning, between 5 a.m. and 6 a.m., disappeared after the router was rebooted. The logged data traffic from the day before is unaffected.

Without knowing exactly how the firmware works, it seems that the logged data traffic is saved via a "write memory" at the end of the day, but apparently not when the router do a reboot.