Ok, i have a one-way cable modem (i send data through telephone lines) from my local provider. the company that provided the cable service pulled out a few months ago (HSA), but my modem was still working up until now. The cable company got a new provider (cablerocket), which uses different modems and only works where 2-way is avaliable (not at my house yet). I get a signal with my old modem, which must mean that i am connecting through the new provider. But the problem is dialing in. I can dial in and connect, except my IP is different as of yesterday, and i can do anything after i dial up and connect nothing works. instead of the 24.x.x.x IP i used to have yesterday with the old provider, now when i dialup i get a 12.x.x.x IP. Since then i can't get the cable modem to recieve data. The telco modem sends out the request, but the data never comes back to the cable modem. any idea what's going on here? anything i can do, or is it something happening down at the cable company? i've called them about 10 times telling to get them get me 2-way access, but never get past the operators who tell me the supervisor will "call me back in a few days" i'm gettin pissed off. people at the other end of my neighborhood have 2-way, why don't I? i'm still trying to figure out a way to network my house to my friends about a mile on the otherside of a field who has a 2-way cable modem.

thanks for any suggestions,
matt

How do you know the modem is sending out the request and that it's being received by the other end?

It definitely sounds like a routing issue... if you're on a Micro$oft box... issue "route print" at the command line, copy and paste the output to a reply on the thread, and I'll take a look.

Linux box and various variation =)
/sbin/route -n

<center><img src="http://pictureposter.audiworld.com/12726/route.jpg"></center><p>

... and try to get the machine to send/receive data successfully from/to the outside, on it's own.

Also, make sure that your ISP knows which MAC address is valid on the Cable Modem because I know, (in ATT's case), they won't let just any MAC address grab an IP from the modem.