Thanks for letting us know about your issues with loss of internet, I apologise for any troubles incurred.
I have tested the connection from here for you and I couldn't see anything out of the ordinary from here, no errors or time outs inside the Hubs logs and all of your power levels are within the preferred ranges.
Are you still having these issues? If so, please respond to me here with a recent copy of your Hubs logs for me to compare with the data we have here. You can find this by opening your internet browser and typing 192.168.0.1 into the address bar, before logging in it will say 'Router Status' click there and all the information needed is inside.
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