Thanks for the post to let us know that your WiFi and internet are not working, I apologise for any troubles incurred.
I've tested your connection 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 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 right hand corner, click there and all the information needed is inside.
Tech fan? Have you read our Digital life blog yet? Check it out