only have this modem for a week , but it have be rock steady so far . only problem I have with installation be I misread a d as a 0 in the MAC address because of they tiny size . once I catch that error , it go smoothly . I dont know why they make the digit so small ! -lrb- and yes I do have my glass on , but you need a magnifer glass ! -rrb- have read several report of this unit run hot , but I dont find that to be true . at least it run cooler than the cable company supply Aires modem . very happy so far .