can't acquire IP address

Question

Hi,All,
Latitude CPX with XP Pro. it worked fine until the university changes its wireless setting. I followed the instruction ( I am using a USB wireless adaptor), it works in and out. finally someone in the campus tech support did something to my labtop and it starts to work for a week. then die for ever-- cann't connedted. now, even I try to use wired internet, it shows the computer keeps trying to acquire IP address then failed finally,which says it hs limited or no connection. I removed the wireless adaptor program and rsinstalled XP Pro in the "repair" mode. but it still shows the same problem.
so anyone could feed me some idea: what is wrong?
by the way, the instruction for the wireless setting from the university is here:

http://www.utdallas.edu/ir/cats/network/airutd/winxp/index.html

regards,
T

jmwills · Answer

http://www.pcmag.com/article2/0,4149,1277020,00.asp

http://www.microsoft.com/windowsxp/using/security/expert/bowman_wirelesssecurity.mspx

Two setup tutorials. You will need to know the name of the network and any encryption passwords needed for access. If the IT people "broke it" tell them to fix it.

bigworld005 · Answer

Hi, jmwills,
thanks for the reply. actually my problem is that now even with wired connection, my labtop still cann't acquire IP. I checked the TCP/IP properties, it shows normal (auto acquire IP address).
forget to say, my XP with SP2.
by the way,my wireless works fine when I first set them up. but at the beginning of this year, they change the set-up, my nightmare comes.

regards,
tao

jmwills · Answer

So neither the wired nor the wireless works?  You confused me.

bigworld005 · Answer

neither works. now I just want to get the wired one back to work first. thanks, tao

jmwills · Answer

Can you please post the results of an ipconfig /all  ?

bigworld005 · Answer

Hi, I don't how to post a picture. so I upload it to my Yahoo album. the URL is : http://pg.photos.yahoo.com/ph/bigworld005/album?.dir=/7210 regards, tao

jmwills · Answer

type this: ipconfig /all >> ipconfig.txt Watch the spacing in the syntax and seatc for the .txt file and then post it here.

bigworld005 · Answer

Hi, jm,

Could you see the picture I upload? the URL is in my earlier reply. I set it available to pubic. so you should have no problem to see it. I am now at office and the laptop is not. sorry I couldn't do what you said.

regards,

tao

jmwills · Answer

What is a 'Teredo Pseudo tunneling Interface'?  This appears to be a USB connection to a DSL modem?

bigworld005 · Answer

Hi, jm  I am using a USB network adaptor plugged to the USB port of the labtop to get internt ( old laptop doesn't have a network card inside). on the other end is a Cable modem.   regards, tao

jmwills · Answer

How does the laptop connect to the cable modem?  Does the modem have a USB port?

bigworld005 · Answer

Hi, JM,

the whole internet wiring is like below:

laptop--> USB network adaptor-->internet cable (RJ 45 cable, I don't rember clearly what the name, but it just normal data cable to hook up internet. every one use this stuff)--> cable modem.

the cable modem do has a USB port on it. but I am not using it. I connected to the LAN port.

see when I try to connect the RJ45 cable to the network card in my desktop, everything is fine.

regards,

tao

Networking, Internet, & Bluetooth

can't acquire IP address

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