I've got a TP LINK wireless router, model TD-W8968. When we have lots of devices in the house (10 - 15, made up of laptops, iPhones, iPads etc.) we find that some devices can't connect to the network.
Things work normally most of the time but when someone comes round with extra devices we start getting problems.
I've tried making extra wireless networks (a feature that TP LINK offers) but that still gives the same problems.
How do we go about narrowing this down or solving the problem?