Contacted Talk Talk Tech support to ask for help re: the above. When connected to the internet struggles to get to the first bar on the signal indicator and sometimes drops the signal. Tech support advised me that if my old hub was working OK carry on using that. No need to return the ground breaking one. Does anyone have the same problem.
This is a very common issue with just about any router. Slow speed, intermittent dropouts, breaks in the signal, or no signal on some or all devices, might be caused by Wi-Fi interference from other local networks, which can also lead to a permanent reduction in speed. No ISP can be responsible for your local environment, this is mainly a by-product of the popularity of Wi-Fi.
However, other factors should be investigated first. When this happens, what are the lights showing on the front of the router? Do you have any wired connections & if so, how do they perform?
Generally speaking, the 2.4GHz band suffers much more from interference than the 5GHz band, but the 2.4GHz one can sometimes have a better range, but this all depends on your local area.
If you would like help to try & resolve this issue, this topic is too complex to be dealt with in one post. The next stage involves sending out a guide to you to help you get me some important diagnostic results, so as I can analyse them for you and recommend changes to your router configuration to solve them.