... it seem that various isp be break FCC regulation and Federal Law by refuse to activate some newer modem , in a attempt to force user to use a `` lease '' modem . there be a essentially identical version of this device , the sb6141 , which be the `` isp lease '' version of this . you can not buy that , at least not `` officially , '' mind you . Time Warner Cable have just have I on the `` loop '' for the past two and a half hour , and I be still on hold as I write this . they be tell I that the device be not on the `` approved list '' and thus can not be activate on they system . this , of course , be patent nonsense . all they require in order to access any device be -lrb- a -rrb- a device which speak the same electronic `` language '' -lrb- in this case , DOCSIS 3.0 , which TWC Austin support fully , and brag about support fully -rrb- , and -lrb- b -rrb- a valid , unique hfc MAC ID code . the MAC ID be what allow the two device -lrb- the isp 's `` source '' modem and you modem -rrb- to talk to each other , as the isp need to know that the ID it be talk to be a id which it be suppose to talk to , and they need to speak the same language . that be all that be REQUIRED ON ANY TECHNICAL BASIS whatsoever . it be a violation of Federal Law and FCC regulation for a isp to refuse to service any device which have a valid , unique , and `` not steal '' MAC ID and which use a approve communication protocol . those of you who have be tell `` Comcast will not support this '' or , as I just be , `` Time Warner will not support this , '' please realize , you be be rob , every bit as much as if they put a gun to you head and tell you to hand over you wallet . it be a crime for they to do this . I be currently on hold , with a `` customer advocate '' at Time Warner , attempt to get my personally-owned , legally-required-to-be-supported device add to my account . \*\*\*\*\*\* okay , after a long dialog where I quote letter and verse of Federal law to the `` advocate , '' I get they to add my modem to my account . and it be work flawlessly . I would not ordinarily post thing not specifically about the device on a review of the device , but in this case , I feel like it be necessary , as some folk may believe they have get a defective piece of hardware -lrb- base upon what the isp tell they -rrb- when this be not the case . my ping time have improve ... which be somewhat surprising to I , honestly ... from about 58m to around 20m . I be not sure why that be the case , but it be a good indication that I have a better connection -lrb- lower ping time mean less delay between when you send something at one end and when it be receive at the other end , basically -rrb- . my throughput be much more consistent and level , and I have not see any of the disconnection error I have see repeatedly with my older -lrb- DOCSIS 1.0 -rrb- modem . it seem to be perform flawlessly . if you have a internet service provider -lrb- isp -rrb- who have support for DOCSIS 3.0 -lrb- the latest iteration of the modem-interaction-language standard -rrb- , this be a great choice . just be prepare to have to argue a bit with you isp , who seem , in many case , to be do everything possible to get you to lease one from they instead of buy you own . once they give in and agree to activate the MAC code on they system , this will work just fine on ANY current isp , and will provide full DOCSIS 3.0 support on any DOCSIS 3.0-supporting network . do not let the script-reading `` support '' type tell you otherwise .