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Old 08-04-2006, 10:57 PM
greyham433@hotmail.com
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Default Wireless network problem

Hi. I have a router which is connected to my ADSL modem and one
computer, and then another desktop with a USB wireless adapter that I
have been using for a while now. Everything was great but then one day
the computer with the USB adapter wouldn't connect to the internet. I
can still connect to my network and get a good signal but I can't even
ping 192.168.1.1 and packets are being sent but nothing is being
recieved. Does anyone have a clue what happened because I don't?
Thanks for the help,
Graham


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Old 08-04-2006, 11:48 PM
Duane Arnold
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Default Re: Wireless network problem

greyham433@hotmail.com wrote:
> Hi. I have a router which is connected to my ADSL modem and one
> computer, and then another desktop with a USB wireless adapter that I
> have been using for a while now. Everything was great but then one day
> the computer with the USB adapter wouldn't connect to the internet. I
> can still connect to my network and get a good signal but I can't even
> ping 192.168.1.1 and packets are being sent but nothing is being
> recieved. Does anyone have a clue what happened because I don't?
> Thanks for the help,
> Graham
>


You can check the IP the computer has by doing IPconfig /all at the DOS
Command Prompt. If the IP starts with 169, then there was a timeout and
the O/S assigned the IP to the NIC.

The 169 IP will let the machine access other machines on the LAN, but
the IP is not going to allow you to ping the router nor will it let the
machine to access the Internet, since it's not using an IP from or on
the router.

If the 169 IP is there, then the O/S has to release the IP. You can
reboot the machine or use Ipconfig /release and IPconfig /renew to see
if the IP will be released. If it doesn't release, then you have to
reset the TCP/IP stack, which is based on the O/S type to get the O/S to
release the IP.

Duane :)

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Old 08-05-2006, 04:37 PM
Jeff Liebermann
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Default Re: Wireless network problem

greyham433@hotmail.com hath wroth:

>Hi. I have a router which is connected to my ADSL modem and one
>computer, and then another desktop with a USB wireless adapter that I
>have been using for a while now. Everything was great but then one day
>the computer with the USB adapter wouldn't connect to the internet. I
>can still connect to my network and get a good signal but I can't even
>ping 192.168.1.1 and packets are being sent but nothing is being
>recieved. Does anyone have a clue what happened because I don't?


Three possible problems.

Machines and adapters sometimes hang. Shutdown your computer, unplug
the USB dongle, pull the power plug, and wait about 30 seconds. Then
power it back up.

Another is that you have somehow lost contact with the DHCP server and
are stuck with a 169.254.xxx.xxx IP address. Duane Arnold explained
how to check and remidy that in his previous reply to your question.

However, if runing:
ipconfig /release
(wait a few seconds)
ipconfig /renew
ipconfig
doesn't return a proper IP address, then it's possible that the
WEP/WPA encryption has somehow failed or changed. Windoze will show
that you are "connected" even though the encryption key exchange has
failed. Check if the encryption methods and keys are the same. If
using WEP, be sure to use the Hex key, not the ASCII key.


--
Jeff Liebermann jeffl@comix.santa-cruz.ca.us
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

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