I havent turn off my mac for almost 10 days(normally just close the lid when i did not use it), and the wifi connection got so slow yesterday comparing to my other computers under the same internet connections. For some web sites, i need to refresh the page twice before i can see the contents, while my windows computer finished loading most of the web contents at once...So this morning I restarted my mac and it seems like the wifi speed is back to normal...just wondering wat caused the slow wifi ? Does it mean I have to restart my mac when my internet gets slow? or there is sth wrong with the mac?