Thanks for posting and I'm sorry to learn this was happening to your wireless connection.
I have located your account to run a couple of tests and everything looks okay at the moment, do you have any problems when you're connected through a wired connection?
Regarding your wireless connection I would recommend checking out these two links as they will help you get the best out of your wireless signal.
*Changing your wireless channel*
*Getting the best out of your wireless connection*
Please let me know if you still have any issues and I'll investigate it further for you.
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Thanks for getting back to us.
With the Hub 3, it broadcasts the 2.4 GHz and 5 GHz as one network. It may be worth separating these and renaming them to something completely different including the password.
I can see that you are currently on channel AUTO, have you tried any other channels by any chance?
Does the devices still show they are connected to the wireless when the internet stops working?
Thanks for the reply and sorry for the late response.
When you get chance, complete a factory reset of the Hub 3, rename/separate the wireless networks again and see if this will help.
Are you using any power line adaptors at all?
I appreciate all the checks you have completed so far, however too no avail.
I've sent you a PM (purple envelope icon, right corner) with more information in regards to this issue.