Hiya just a couple of possibly simple questions I couldnt find answers to in google. Using inssider and tracking my network noise.

Its averaging 55db with probably more time spent on 60db. Is this normal? Or is this bad, on the same floor.. doesnt matter what channel I set the router to. Router is a WNR2000 (not a v2/3 just a normal one)

Secondly, why does the channel in inssider report "1+5" or "2+6"

Router is set to up to 300mbs.

Im regularly getting bad webpage loads and terrible download speeds, first test was 20mbs and now its only <3mb average!

From my pc I get 49mbs (of a 50mb internet).