Apr 14 20:37:27 WAN Dialup Try to establish PPPoE line
And so on until the connection is re-established about 40 seconds later.
This problem started happening right after I switched the modem to bridged mode and started using the new router to do the PPPOE connection. Prevously I had a different router that I only used as a switch and had the modem doing the login and this worked fine but I needed wireless so I bought a new router.
I constantly get the "Flood attack" messages, about once every minute.