Problems with latest update and network

[Richard Morse]

Hi!  I just CVSup'd (last Thursday) and upgraded my system to RELENG_4. 
  I now cannot connect (seemingly) to the network.  Whenever I try to 
ping and outside system, I get "ping: sendto: no route to host".  I 
can't ping my router, or even hosts with known IP addresses.  I don't 
see anything odd in `netstat -a` or `ifconfig`, but I'm not the worlds 
greatest networker, so I'm not sure that I would know what is odd.  
uname reports the system as "4.9_PRERELEASE".  The ethernet card is (I 
think) and Intel card -- the device is 'ep'.

Any suggestions on what I can look at to figure out what is going wrong?

Thanks,
Ricky Morse