I have an older cable modem running Comcast's service connected to the newest AirPort Extreme in my current setup. My computer is a 13.3" MacBook Pro with all of the latest software updates. With all of that said, I'm having problems with having webpages hang, dropped audio on streams and constant re-buffering of video. Strangely enough, my signal is always at full strength no matter how far away I am from the AirPort. Until a few days ago I was using a Linksys WRT54GL with DD-WRT firmware with absolutely no troubles at all, but things have gone to hell with this new router. I've rebooted my modem and AirPort and I've browsed through the settings without finding any solutions yet. I've tried 5Ghz mode, I've tried being inches away from the AirPort and I've tried going to 802.11g with no improvements. Does anyone have an idea about what is going on?