Re: Trouble obtaining IP address



Lem,
My DSL modem is a Westell WireSpeed (or maybe SpeedWire) device.

No userid or password needed; I only had to power up the DSL modem and after
10-15 seconds I could use the internet.

On the Network Connections it’s shown as Local Area Connection.

I have not tried ipconfig/all
I only tried:
ipconfig
ipconfig/release this will bring all zeroes
ipconfig/renew
The IP Address, Subnet Mask and Default Gateway all displayed something like
xxx.xxx.xx.xxx when all was working on. Applies to both computers
When the connection could not be established the default Gateway did not
show anything.
Thank you.


"Lem" wrote:

Dual Trace wrote:
I’ll try to make this as short and clear as possible and then reply with
details as needed / requested.

I have an old computer connected to internet via DSL modem which used to
work fine. Decided to connect a new computer to internet using the same
modem, so I moved the Ethernet cable from the old one to the new one. The new
one was not able to get the IP address. Went back and forth through the
ipconfig deal with Verizon tech support, but could not make it work. Tried
the same maneuvers with the old one, just to prove modem and connection are
fine and indeed everything worked fine when the old computer was hooked.

Tech support from the new computer (HP) advised me to go through the system
recovery because some Windows socket registry might be corrupted. Done the
recovery and was able to connect the new computer. IP address, etc. were
acquired and all was OK.

Now I switched the Ethernet cable to the old computer again and guess what:
it shows the same symptom. Cannot obtain the IP address. Verizon tech support
said I cannot switch Ethernet cable from one computer to another and expect
to work because the last computer obtaining an IP address will somehow keep
that route occupied and the attempt of another one to get an IP address will
fail. They said I need a router.

Well, how come it worked after restoring the new computer? At that stage of
the game, the old computer had obtained an IP address and then the new one
was able to connect and get his as well.

Note: When trying the ipconfig command, both IP and Subnet Mask seem to get
valid addresses, but none is shown for Default Gateway.

I know this is not black magic, but it certainly looks to me.

Any help is appreciated.
Thank you,
Dual Trace

I agree with you. You do not need a router if what you intend to do is
to keep the new one as the only computer connected to the Internet once
you get all your data transferred to it.

Let's start with the basics. What is the device that you are calling a
DSL modem" (make and model)? Often, these boxes are not just modems but
one-port routers as well.

A related question: when you were able to connect using the old
computer, did you have to enter your userid and password, or was it an
"always on" connection? If you go to Network Connections on the old
computer, did the active connection show as a "Local Area Connection," a
"WAN Miniport (PPPoE)," or something else?

What does ipconfig /all show (on both computers)?

--
Lem -- MS-MVP - Networking

To the moon and back with 2K words of RAM and 36K words of ROM.
http://en.wikipedia.org/wiki/Apollo_Guidance_Computer
http://history.nasa.gov/afj/compessay.htm

.



Relevant Pages

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