I have two access points at home - one is the ADSL modem (netcomm NB604N) and the other is a LinkSys WRT54G running as an extender at the other end of the house. Signal seen from either is not great, and coupled with the lousy ADSL in our street (7/0.5 Mbit on a good day), internet is still usable - just. Whatever, the problem I have is this:Regularly, some of the devices connected to WiFi (an iPad 4 and a Sony Tablet S) decide they are going to go really slow. The Sony tablet gets to the point where it switches between the two AP's or just gives up. The iPad freezes on page loads and eventually times out. In both cases, the cure is to switch off WiFi on the device and switch it on again. Then things seem to sing along wonderfully until some days later when I have to repeat the procedure.What could this be caused by? If I look at the spectrum with WiFi analyzer it seems as if signals are stronger after the WiFi switch off/on. Could a rogue device in the neighbourhood (portable handset, etc) cause this effect?
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