Try running this command to launch bitcoin:
bitcoin -addnode=69.164.218.197 -addnode=64.22.103.150 -addnode=173.242.112.53 -addnode=178.79.147.99 -addnode=184.106.111.41 -addnode=91.85.220.84 -addnode=173.224.125.222 -addnode=86.5.50.90 -addnode=178.255.199.86
I believe that the IRC channel which is used to find peers can fill up, and this command will manually assign you peers instead.