Cox high speed internet just came to our home and it's been connected to my desktop pc(OS:win98) perfectly.
I got also laptop pc(OS:winXP), so I pull Ethernet cable
out of desktop and stick it in to my laptop Ether connector.
...won't connect to the internet.
Cable modem is working as long as desktop pc has no problem
connecting the internet, Ether cable also. and my laptop
Ether(Built-in, Intel PRO/100 VE Network Connection) shows no
error, everything seems fine to me but it won't connect.
Besides, it's been working at my office LAN, so can't be broken.
My desktop pc is picking up IP address of 68.10...subnet but
laptop pc has 192.168...subnet besides no G/W address picked up, could ping itself but anywhere else.

I don't remember what I did any more, I did so many things which
could possibly solve this problem, but it won't go away.
If someone who know how to deal with it, please help me!!

Model: IBM Thinkpad R32
OS: winXP professional
N/W adapter: Intel PRO/100 VE Network Connection
High Rate Wireless LAN MiniPCI Combo Card(Disabled)
1394 Net Adapter(Disabled)

unplug the pc and turn the modem off
plug lappy in and turn the modem back on.
cox establishes a trust when the modem is turned on so it must be rebooted to create a trust account with a new computer.

Originally posted by jerry atrik:

"unplug the pc and turn the modem off plug lappy in and turn the modem back on."

A.) Turn off PC/laptop first.

B.) Then, routers/firewalling "NAT" routers (if you use one like a LinkSys or Netgear for instance).

C.) Lastly, power out/reboot/bounce cablemodem.

* WAIT UP TO 1 MINUTE BEFORE TURNING THEM ON AGAIN, SO THEY LOSE THEIR CONFIGURATIONS ONCE POWERED OFF/UNPLUGGED.

Then?

1.) Turn on cablemodem, wait for "link" light to show as powered on & sync'd w/ BSP... this varies by modem type, e.g.-> Top 4 lights on Motorola Surfboards etc.

2.) Then, turn on routers (if any), & wait for link light here...

3.) Turn on PC/laptop & logon.

* This is std. operating procedure step #1 for any cable internet support tech... & it fixes a good 90% of the hassles that go on (mainly, loss of sync between cablemodem & BSP, or sync of router to PC, or direct cablemodem to PC's & IP stack).

(The only REAL diff. afaik, is if they do it from cablemodem BSP side (reboot of modem), is that also clears the cablemodem's ARP cache)

Originally posted by jerry atrik:

"cox establishes a trust when the modem is turned on so it must be rebooted to create a trust account with a new computer."

Some "FYI" for folks:

All cablemodem ISP's do that during the "DORA" (discover, offer, realize, acknowledge) cycle!

Via TFTP to your cablemodem (really a router if you think about it, that is how you configure many routers... either telnet, or tftp).

* They send a config file that writes into the EEPROM of the cablemodem, creating the private network (10.x.x.x) they operate privately on.

APK

^
what he said

I just happened upon this in google and felt like adding a bit of info.


The private network 10.0 is created by a router. As long as your ISP is using your Cable modem as a bridge your PC will have it's own IP. As long as your only paying for 1 IP, you will only be leased 1 IP.

That wait 10 minutes before you reboot your cable modem is BS. Unplug it and plug it back in. Depending on your modem; it takes less than a second for the ram to clear and a little more for the caps to disipate (but the circuit is built with these tolerances in mind). When you are dealing with most transister devices (CRT's excluded); 10 seconds is insanely more than enough time... Unplug it and plug it back in; if it makes you feel better at night, quickly count to 10.

To beachside :
Buy a router. I recomend the Linksys WRT54G. The monthly cost of a second IP on the Cox network will cost you more in a years time.

To anyone who Google'd TFTP and Cox : http://www.tcniso.net

Another FYI for you, I'm currently on Comcast Cable, previously it was ATTBI before the buyout I currently use a Linksys BEFRS41 Cable/DSL Gateway box. Works great for my entire household