Old news but simmilar issue as the cheapo routers using the conexant chipset
sold by Ebuyer etc, but being far more dangerous. Telneting to either of 2
ports you can access the router settings with _Any_ password and constantly
reset it to factory defaults, leaving some poor sod with not connection.
This is found on the Origo Branded routers for certain, which a later
firmware version adds a Hidden option to close them. Easy to find out if you
have that option just access the router via a browser and point it @
http://10.0.0.2/doc/hidden.htm