Is there a way I can check what the Cellular signal strength was before the device went offline?
We only show real time signal strength.
As TK states, we only show real time signal strength. Therefore, we don’t store information of the last signal strength right before the device shuts down.
However, if you know what time the device shuts down, you can go to incontrol2.peplink.com and check out the signal strength.
Here is the information about InControl2.