This modem failed 6 times before I returned it to the maker for repair or replacement. It would go out and AT&T techs could not make it work. It would come back in without anyone doing anything. It was intermittent and the problem could not be solved. Since my very frustrating experience with this product I could never trust it again. I have another brand now and it is working much better than the DCM200 ever did. Unhappy in California.

This modem needs extremely good ventilation to work properly. For it to work reliably, I actually had to attach a fan to it. If it gets hot at all it drops the connection and needs to be reset. It works fine when it is cool but I can't keep it cool enough for long enough periods of time.

... It's easy to set-up with AT&T. I called AT&T and they gave me the website to register. It was done in less than 10 minutes and I was surfing faster than my leased RCA. I recommend this product since now it should take less than 8 months worth of lease to fully pay this modem. Beats leasing. Again, easy set-up if you have AT&T. No trouble with windows XP.

I purchased a dlink wireless router to share my internet with other computers. After five calls to dlink tech support they suggested I try a different brand router or different cable modem. So I purchased the linksys router, same problems. Must be this modem. Before trying to use the router I've had good performance with the modem via ethernet. Tried to use the USB option once, couldn't get it to work.

First of all the lights on this modem make very little sense and require you to refer to the manual to decode them. Secondly the manual is terribly unhelpful for trouble shooting. And lastly the modem must lay flat and has no feet for standing on edge like most other modems. I made a big mistake buying this one... I should have stuck with the Surfboard I was renting.

Ordered first modem and it appeared to be opened. Had ISP installer set it up and it failed to work. Had to rent ISP modem. Ordered second D-Link modem and it also failed to work. ...