I have only use this modem with the Comcast network thus far in the 2 apartment that I have live in this year -lrb- south Florida resident -rrb- - so far , no problem , no hassle . Modem have steadily maintain the always-on connection and be connect to my trusty  Cisco-Linksys WRT54G Wireless-G Router  upload and download speed be fine - torrent download fairly quickly , be able to stream hulu with no problem . overall , extremely reliable and a great value . it be a great alternative to the steady $ 5\/month rental fee Comcast put in you cable bill for they Motorola modem - and I be fairly certain that I have never have to do the `` unplug-wait-replug '' cycle to restart a connection - which I have to do a lot with the Motorola surfboard modem that I have from they previously . highly recommend .