sounds like cable company is blocking your signal your computer is the one
they have registered or the one they first installed .i live in iowa and
mediacom cable has done that to me they wanted five dollors amonth per extra
computer .do a ip release then shut down unplug cable modem and router then
when you restart plug modem and router back in

"Qnguyen" wrote:

> Hi,
> I applied a cable internet for my appartment. They send me a cable modem. I
> connect my laptop to modem and browse the internet without problem. The
> problem is if my roomate try to use her laptop, She has to reset the modem
> (turn off 1-2 minute and on again) to get it work, and then if I use it I
> have to reset again.
> I also try to connect another router to this modem for all of us but noone
> able to get to the internet thru the router which connect to the modem.
> Is there a way for us to able to connect to internet without reset the modem
> (just plug in cable and use).
> Why do we can not use internet the same time thru the router even the
> connection status show very fine( Packet sent and received over thousand)?
> I am very appreciating for your help. Thanks