Thanks for posting to let us know that your internet keeps going off at the same time everyday, I apologise for any inconvenience.
I have run some tests from here and I can't see anything out of the ordinary no errors or time outs inside the Hubs logs and all of the 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 these by opening your internet browser and typing 192.168.0.1 into the address bar, before logging in it will say 'Router Status' in the top right hand corner, click there and all the information needed is inside.
I look forward to hearing from you,
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