Hi @Susquatch,
Please make sure you’ve updated your Reach M2 to the Reach Firmware 26. This will help to ensure that your receiver has all the latest improvements within the software.
The age of differential of 7 seconds is a rather big value. It might happen because the radio channel selected for LoRa is occupied for some other purposes as well. Please try changing the LoRa frequency bands to check if it helps.
I’d recommend setting up the frequency at the highest allowed value in your area. If the range is not sufficient for changes of the age of differential, go down with the 1-2 MHz steps until you find the frequency that works best for your area.
I see that you’ve created another thread on this topic. Let’s continue the discussion on it there to keep all the details in one place.