Its only happened twice today, my machine got quite hot but this didn't seem to effect it, it has never happened mid use and cut out either, its only ever happened once I fired the machine up.
Resetting router / troubleshooting safari didn't work, nor did restarting or powering on / off the machine (unless I remove the battery) - like I said so far its happened twice but it was effecting both safari and firefox
Will update ifit happens again but the actual internet connection seems to always stay strong signal, very occasionally the signal dips by a few bars and pages will take abit longer to load, but then it shoots back up and is just as fast, just as with all wifi connections I suppose.
----------
One last thing the router works flawlessly on my PC, other laptop, iPhone, Tablet, my old iBook, Xbox (sometimes haha), Wii and pretty much any wireless internet enabled deivce, so I dont think it will be the router in the case