Wifi slow in 10.10.1 mid 2010 MacBook Pro
I have a mid 2010 MacBook Pro with the RAM maxed out. Yesterday I upgraded to Mavericks, including the update to 10.10.1, and ever since my WiFi is terrible. Some sites are ok, but youtube, Facebook are like tar. I saw one recommendation that I clear the systems folder and reboot, but that didn't do much of anything.
Suggestions?
David