I've noticed some peculiar behavior with the routers that Verizon issues for FIOS customers using ethernet. Normally I have a beaitiful 30mbs down, but after an underterminable amount of time this speed will drop to 2mbs and below and will not restore until I disable and renable the ethernet card. I know for a fact this is a particular issue with Verizon issued routers because when I didn't have the television package I used a D-Link router that never had this behavior. Also, I've noticed this only happens with one machine in particular (Windows 7 x64 bit, Realtek PCIE 1gig ethernet card) and have never had an issue with other systems using the router.
Does anyone have any insight on this issue? Seems to be hardware related, specifically ethernet interface related. Really frustrating.