I've been running 10.3 since second day of release, until this morning my modem connection to the internet has been solid. It stays up on 8-20 hr/day. Since installing the 2003-11-19 security update I have yet to keep a connection for more than 22.1 minutes. the average connection time is down to >10 minutes now. I'm writing this offline at the moment. Actually since installing the update I've even noticed that my connection is initializing at a slower rate and passing traffic slower even when it connects at 48000, (normal connection). The update is the ONLY thing that has changed on my computer. I am now also greeted with a new Ethernet Adaptor every time I restart, now I'm up to (en6) and I only have the built-in port.

This update FAILS, I give it a D-.