My MBP's wifi is annoying now. 2011 model. Most of the time, its 4 bars but sometimes, its really rubbish (2 bars). Sometimes it hangs on 3 bars. It'll connect at full, and then drop. Now what are my solutions? Would an airport express help? My router = BTHomehub 2.0 - i know not brilliant, is this the source of my problems? I'm unsure since everything works wonderfully on my sisters Imac, my dad's very old macbook. It definitley could be though... My router is situated downstairs. Would an airport express or an airport base resolve any issues via repeating the signal? either something is funamentally wrong with the MBP or there is some type of fix/compromise I can come to. I've gone through plenty of wireless channels, no help on my router.