MyNet N900 Central Router: the Perpetual Disconnect Machine?

Greeatings pepole!

Hi I have the same problem. it connects off suddenly without Reason. I have also experienced dhcp is gone away from the the LAN side but works on the WLAN side.
just now cuple minutes ago i got no internet connetion on my win 7 ultimate ive just restarted the router wd now i cant log into it! Internet is back (if not in culdent post this.) but i cant login into the router! in sayes i got the wrong password? but ive never changed it! its the same ive used! allways! strange? my field of study is computer networks ive never seen a dhcp act this way! it seems the router maby get Full? I need to reset? Ive was looking over the OSI model to see on if ive missed Something but i cant figure this one out!

håkon