Re: Wireless Internet Connection - Not working
- From: Lem <lemp40@xxxxxxxxxxx>
- Date: Wed, 05 Sep 2007 12:03:08 -0400
"Host name" in the output of ipconfig /all is the name of the local host computer on which you just ran ipconfig. In this case, "nancytwo" is correct.
The results of your ipconfig command verify what the earlier error message said -- your laptop is not able to connect with the DHCP server in the router, and therefore is not obtaining an IP address for your local network.
Because you have two desktops connected (by Ethernet cable I assume) successfully, the router's DHCP server appears to be on and not broken.
The particular wifi adapter chip you have, Realtek RTL8187, can be packaged either as a USB "dongle" or built-in to your laptop. If it is built-in, the most likely cause of your problem is that you have turned off its radio. Almost all laptop built-in wifi adapters have either a physical switch or a Fn+Fx key press combo that turns the wifi radio on/off to conserve battery power. Check the user manual for your laptop.
If the adapter is an external USB device, there is a possibility that something's wrong with your USB port and/or drivers. Check device manager. Do you get the "bong" sound when you connect or disconnect the adapter? Perhaps the easiest way to confirm that your USB port is working is to attach another USB device. Do you have a USB printer, memory stick, mouse, or something else you could plug into the port that you're using for the wifi adapter?
When you "view available wireless networks" does your own network show up? Does ANY network show up? Take the laptop to someplace where you know there is a wireless network (Starbuck's, your local library, etc.) and see if you can see and connect to that network.
If you can:
- see other networks but not your own, then either you configured your router to not broadcast your SSID or your router's radio is off or broken. Check your router's configuration utility to make sure that SSID broadcast is enabled and that the radio is turned on. If SSID broadcast is on and the radio is on and you still can't see your SSID but can see other networks, than your router's radio is probably broken.
- see neither your own network nor any other wifi networks, then either your laptop's wifi adapter probably is turned off or is broken.
- see both your own network and other networks but still can't connect, then the problem is likely that your laptop is failing some security measure set up on your router. Temporarily disable all of the router's security measures (encryption, MAC filters, and any other filters). Confirm that you can now connect. Re-enable security.
In addition to the possibilities above, there also is a possibility that you are running two wireless configuration utilities simultaneously -- Windows WZC and a utility that came with your laptop or adapter. See the discussion at http://www.ezlan.net/wireless.html which also has more detail on the entire subject.
Nancy wrote:
Checked the driver - it is dated 7/2006, so it does not appear to have been updated recently. Had also tried reseting the router before posting my question on the board - did not work.
Two more pieces of info that might be helpful: 1) I am running Windows XP on all computers, and 2) the 'Main' computer does not see the laptop on the Network.
Below is the text output of ipconfig /all. What I am noticing is that the Host Name is Nancytwo - it should be Nancyone (Nancytwo is the laptop). How do I change this? Maybe this conflict will correct my problem?
Thanks!!
Windows IP Configuration
Host Name . . . . . . . . . . . . : Nancytwo
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Wireless Network Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8187 Wireless 802.11g 54M
bps USB 2.0 Network Adapter
Physical Address. . . . . . . . . : 00-C0-A8-CA-12-21
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IP Address. . . : 169.254.213.2
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
"Barb Bowman" wrote:
shutdown the laptop. unplug the router and plug it back in again.
wait 60 seconds and then boot up the laptop. if this does not fix
your issue, please check and see if there was a recent driver update
that windows update applied to your wireless NIC. if yes, roll back
the driver/uninstall the update.
it might help if you posted the text output from the afflicted
machine of
ipconfig /all
On Tue, 4 Sep 2007 14:20:03 -0700, Nancy
<Nancy@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Hello~--
I currently have a small home network set up.........two desktops connected to the internet through a router (Netgear) and one laptop connected to internect wirelessly. Everything working just fine until about 3 days ago............suddenly I can't connect to the internet on the laptop. Both desktops working OK.
I have tried to "repair" the connection, done "ipconfig /release" and "ipconfig /renew". Every time I get an error message "unable to contact your dhcp server". I have gone in a disable my Firewall (Windows), disabled the wireless connection, re-enabled the wireless connection, still to no avail.
I have to installed any new programs or hardware on the laptop......any suggestions on the problem?
Thanks in advance!!
Barb Bowman
MS Windows-MVP
http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
http://blogs.digitalmediaphile.com/barb/
--
Lem MS MVP -- Networking
To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
http://en.wikipedia.org/wiki/Apollo_Guidance_Computer
.
- References:
- Re: Wireless Internet Connection - Not working
- From: Barb Bowman
- Re: Wireless Internet Connection - Not working
- From: Nancy
- Re: Wireless Internet Connection - Not working
- Prev by Date: Re: Remote Desktop Connection
- Next by Date: Re: One computer can't see the other.
- Previous by thread: Re: Wireless Internet Connection - Not working
- Next by thread: Re: Wireless Internet Connection - Not working
- Index(es):
Relevant Pages
|
Loading
