For the past few weeks, my MacBook has been slow to hook up to my home wifi network. Every time I booted up or woke my Mac from sleep, there would be a short (about 20-30 second) delay before it would properly auto-connect. It doesn’t sound like a big deal, but I have lots of scheduled apps (backups, updates, IM, etc.) and they’d all report errors or fail when they couldn’t promptly find a network connection.