Hi guys.. got a problem with my 2011 15'' MBP. Basically, if I leave the laptop on sleep and wake it up from sleep a few times, my wifi signal becomes poor. Like 3 bars instead of 4, sometimes 2 bars. This is very annoying because my other laptops in the same location will all have 100% signal. I have to restart my MBP and then the signal returns. I've tried toggling different wifis and it doesnt work. I am from the UK and use the BT broadband router if that helps. are they any options/solutions? shall i take it to an apple store? i dont think i can replicate the problem there which is to my annoyance in trying to explain and validate the problem. peace, thanks.