This problem as been occuring as of 3.051 or 3.052 and continues in the RC the PPPOE comes up as of boot and runs fine but at some point the PPPOE connection states that it is down, but I am still able to use all services evternal and internal, but I am not able to config any of new services due to the fact that the WAN option dissapears from all config selections.
The main problem is that as of this point the middleware starts cranking the CPU process to 99% the webin reboot or SSH reboot do not work the system requiers a hard reset.