Thanks for the post! I am sorry to hear about your issues with your connection dropping I apologise for any inconvenience caused.
I have tested things from here and I couldn't see anything out of the ordinary, 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 included. You can find these by opening your internet browser, type 192.168.0.1 into the address bar, before logging in it will say 'Router Status' in the top right corner, click there and all the information needed is inside.
Also, when the connection drops what does the Hubs light sequence indicate?
Tech fan? Have you read our Digital life blog yet? Check it out