I updated OS X 10.8.2 to the supplemental update this morning. Since that time the network connections are broken. I cannot connect at all via Ethernet or wifi. When I look at what is happening, is see that my MBP cycles between connecting and disconnecting whether on wifi or Ethernet connection. I've never seen this before. Does anyone else have this happening since the supplemental update today? One of my colleagues did the same update and has the same problem. Please can anyone help?