Please help

Why when i switch my desktop on (win 2K) the internet is there and i can use it straight away.

But when i unplug the ethernet cable from my pc to plug it in the laptop (the one connected to ntl modem) why does it not have internet?

Is it something to do with MAC addresses? Operating system compatibility?

Anyone able to help?

 

yes its mac address.

ntl uses mac levl security, so if you plug it into a differnt device it doesnt recognise it.

plut it into your laptop, reset your set top box/modem (pull the plug out n put it back in) and then reboot the laptop

now when you try n get on the net youll get an NTL registration page

 

I tried that already But the laptop aint having none of it.

I'm connecting with the thernet cable, not usb. But internet explorer is being a twat and not showing pages or detecting settings.

The laptop acknowledges a Local Area network Connection when the NTl modem is plugged into it, but i can't seem to get internet through

 

Ok, on the laptop (win XP) when the NTL modem is plugged into it via ethernet cable, it acknowledges a network connection with the modem....but under the support tab it says (INVALID IP ADDRESS)

Any help?

cheers

 

make sure on laptop its set to obtain ip address automatically

 

You mean on internet explorer TOOLS > INTERNET OPTIONS >CONNECTIONS> LAN SETTINGS?

 

yes mate

 

Done that

Won't let me renew IP in dos prompt either. Times out.

 

Says 'an error occured while renewing interface local area connection : Unable to contact your DHCP server. Request has timed out.'

:'(

 

start/settings/network connections,

is the connectione nabled,

 

jim has allready told you the answer !!!!!!!

you cannot do it

the connection is locked to MAC address you will need to ring your supplier and get them to change it or buy a router give them the mac of the router and plug all your pcs into that

 

yep, it it

 

also goto start/run

type cmd press enter
then type
ping 127.0.0.1 and telll me what it says

 

re above,

i have 2 pc that run independant thu ntl cable modem, i havbe not shared the connection it works for me

 

ranj he cannot ping anything if he is not being given an ip address.

in our area cable modems are locked to MAC address

 

Hmm, so i'm fucked really then?

 

buy a router thats what they are designed to do then ring your cable company and tell them new mac address tight coooont

 

lol

Its ok, its all under control now

There's a bloody disc that comes with the NTL modem, and there is some sort of registry entry on it that gets installed so the laptop recognises that internet is being piped down the ethernet cable.

Silly me eh

Cheers guys

 

that will be the winsock entry then

 

Probably. I should have thought about it before really, but its late, i got a cold, and its not even my laptop.

Done a complete system wipe on it as it was infested with really nasty replicating spyware, trojans, and at least a dozen worms!

 

no it wont ranj, itll be because he didnt reset the STB properly and its still trying to get a public IP address and NTL is refusing it. if the STB is reset with an unrecognised device plugged in it'll give it connection to the internal 10.x.x.x network on NTL and any webpage he tries to access will point at will redirect to their registraion server

 

He WILL be able to ping 127.0.0.1 with or without an IP address, as this is simply sending a request to the NIC itself, and not going outside the pc.

BTW, cable modems round here are not locked to MAC at all, they used to be eons ago, but now its a free for all!

I do find it wont automatically lease another DHCP address though, and I do have to restart the modem.

 

stu, he wont be able to ping anything without an IP address actually, thats why windows assigns a made up 169.xxxxxxx when its unable to get one, as without it applications which use TCP/IP to communicate locally in a client/server type configuration wouldnt work

 

i just (to double check lol) turned off wireless and I havent got any ethernet patched in, thus both adapters state "media disconnected"

it is still possible to ping the NIC via 127.0.0.1

know what ur saying re: 169.254.xxx.xxx tho

 

i think jim has forgotten 127.0.0.1 is reserved for loopback regardless

 

i think rank has forgoten that you need a source adress to form a TCP packet else what is an icmp request replying to?

stu, thats because there's a virtual adapter windows created thats actually refered to as loopback (you cant see it, but its there) and windows routes all local adresses via this adapter, even with no physical network card installed in a PC as long as tcp/ip is enabled you will get a 127.0.0.1 created.

loopback isnt a hard coded thing same as 10.x and 192.168.x etc. arent hard coded as private IP adresses, its up to software vendors (ie microsoft) to confrm to the IP standard when writing their software etc.

pinging 127.0.0.1 will never tell you anything usefull

 

by the way ive just realised i've contradiced my 1st post

 

we sometimes use it at work, to show that there is actually a semi functional NIC.

btw, who's Rank?

 

lol @ Rank

 

stu, no you dont as the nic can be down and it will still reply

the IP address is bound to a seperate VIRTUAL adapter and the routing table binds all 127.x subnets via this adapter. the nic can be completely ducked (or missing) and you'll still get a rping response.

it would tell you if the TCPIP stack is missing tho, but ive never seen that happen since the days well before windows 3.1!

 

and k is next to j and i cant touchtype properly

 

touchtype

 

well, i use 2 fingers on each hand so its better than the "point and press" aproach

 

Sorry chief but thats absolute bollocks, both NTL and Telewest use Mac recognition software on the UBR's - plug ANY device that uses TCP/IP into the modem, reboot the modem and refresh your IP and it will pick up the new MAC address - no need to register a new MAC! I'm a service engineer for Telewest btw!

A router is honestly your best bet if you want to use the connection for several PC's/laptops - saves continually rebooting the modem which doesnt do em much good!

Rich

 

Cool, cheers guys!

Will be getting a router

See other thread about wireless shinadigans today arked up outside a freight firm, trawled through the files and found a memo entitled 'all drivers' and the fool left it open for me to tamper with files!

So i changed the memo to say that they are having pay cuts and printed it out 50 times with the network printer

 

dog you just contradicted yourself.

also NTL does not automatically work without going through a longwinded registration process on the new MAC. I know this to be true for the set top boxes for sure (as i have to do it reguarly on mine) ive never tried on the modems but ive been told by other people that it works identically to the STB

 

Apologies for the abrubt post before - was absolutely mortal when I typed that - Gonna have to put a breathalysler on my PC to stop drunken posting

Not entirely sure about the NTL STB's you have more experience of them than me - Telewest stbs and cable modems just recognise new equipment on a reboot - no need to reregister and I am 99% certain that NTL's cable modems are the same - they certainly used to be!

Rich