My home wireless network has worked flawlessly for months but one of my PCs
suddenly refused to work last night.

I have a BT Broadband connection (1Mb). This connection works OK since the
other PCs in my home connect OK (I am typing this from my wireless laptop).

My hardware is: BT Voyager wireless router/modem. Belkin wireless network
adapter. All running at 801g (54Mbit). I let my Belkin software manage the
connection (not Windows). I'm running Windows XP SP2.

Last night my Internet connection suddently went down. The PC was previously
working fine (and connecting to the Internet without a problem). The icon in
the system tray was reporting "limited connectivity" but I had something
else to do and ignored the problem.

But this morning the same problem arose. This time I appeared to have full
(90%) connectivity according to the icon in the system tray. So I expected
to connect to the Net without problems - but I couldn't (it timed-out).
Worse, I can't connect to my router's home page. But my PC reports that my
wireless adaptor is working OK and that I have connectivity (ranging from
90-95%). But nothing works.

Sometimes the system tray reports "limited connectivity" but if I disable
and enable the connection it goes back to (almost) full connectivity. But I
still can't "see" my wireless router (i.e. it's admin web page).

I'm at a loss. Help!

Cheers.

Bobby

"Bobby" <bobby@europe.com> wrote in message
news:3m5t5fF15ei48U1@individual.net...
newsgroups snipped

Could be a few things, sounds like your laptop is having diffculty
communicating with the DHCP server from the router (thats what gives it the
ip address etc).

Instead of disabling and enabling your connection, go to run type cmd and
type ipconfig /release and then ipconfig /renew see if you can
communicate....

Also, it might be worth changing the channel that your wireless adapter is
on, they usually default to 11, try a different number.....

Also try power cycling your router, most combined routers/dsl/wireless
devices have a reputation for needing to be rebooting now and then.

Gaz

Bobby wrote:
try:
start/run/cmd
ipconfig

If everything looking alright try to check your WEP and SNR.

If still isn't working I could propose you to check your firewalls,
antyvir softwere at your PC.


Best Regards
Marcin Gaszewski

"Bobby" <bobby@europe.com> wrote in message
news:3m5t5fF15ei48U1@individual.net...
How do the other PCs connect? By wireless or by Ethernet cable? If others
connect by wireless and work OK, the problem is presumably with your laptop.

If your laptop is the only PC that's connected by wireless, it may be the
router's wireless adaptor that has got into a strange state: you coudl try
resetting the router (either from its web interface or by powering it off
for 30 seconds).

Check to see if you laptop is being given an IP address by the router's
DHCP:

- Start | Run | cmd
- At the C:> prompt in the black window, type ipconfig /all

You should see output like this



Windows IP Configuration


Host Name . . . . . . . . . . . . : MartinLaptop
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No


Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : NETGEAR WG111T 108Mbps Wireless
USB2.0 Adapter
Physical Address. . . . . . . . . : 00-0F-B5-3C-65-6F
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.0.2
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 192.168.0.1
Lease Obtained. . . . . . . . . . : 13 August 2005 10:12:37
Lease Expires . . . . . . . . . . : 16 August 2005 10:12:37


The important thing is that your PC has an IP address 192.168.x.x and that
its default gateway, DNS and DHCP servers are each the IP address of the
router. Compare the output of ipconfig /all with that from another PC that
works (it doesn't matter whether it uses Ethernet or wireless): both should
have IP addresses in the same range (eg 192.168.0.2 and 192.168.0.3).

If the router has the ability to display the devices that are connected to
it, see whether the laptop and its IP are listed.


Report back the output of ipconfig and I'll see if I can diagnose further.

Hi Bobby,

Reset the router first. Shut down the router and broadband modem. Then power
up the modem and wait until it makes its connection, then power up the
router. You may also find that you need to restart the systems connected to
it, but you may get around it by running ipconfig /release, then /renew from
a cmd prompt.

--
Best of Luck,

Rick Rogers, aka "Nutcase" - Microsoft MVP
http://mvp.support.microsoft.com/
Associate Expert - WindowsXP Expert Zone
www.microsoft.com/windowsxp/expertzone
Windows help - www.rickrogers.org

"Bobby" <bobby@europe.com> wrote in message
news:3m5t5fF15ei48U1@individual.net...

On Sat, 13 Aug 2005 06:38:30 -0400, "Rick \"Nutcase\" Rogers"
<rick@mvps.org> wrote:

there is only one combined modem/router/wireless box.

Phil
--
Remember - Global Warming is only a weather forecast :-)

"Phil Thompson" <phil.thompson@spamcop.net> wrote in message
news:gekrf15hp32ksp7caqbu0kv1jmvq0ath4k@4ax.com...
OK. Power up the combined box and everything within it will start -
hopefully in the correct order to keep Richard happy!

Hi,

Noted. Still though, power cycling is the first thing that should be done.
As it is an all-in-one unit, I would disconnect the machines from it during
this operation.

--
Best of Luck,

Rick Rogers, aka "Nutcase" - Microsoft MVP
http://mvp.support.microsoft.com/
Associate Expert - WindowsXP Expert Zone
www.microsoft.com/windowsxp/expertzone
Windows help - www.rickrogers.org

"Phil Thompson" <phil.thompson@spamcop.net> wrote in message
news:gekrf15hp32ksp7caqbu0kv1jmvq0ath4k@4ax.com...

In article <3m5t5fF15ei48U1@individual.net>, Bobby says...


--
Conor

If Pac-Man affected us as kids, we'd all be running around in darkened
rooms, munching magic pills and listening to repetitive electronic
music.

On Sat, 13 Aug 2005 07:32:30 -0400, "Rick \"Nutcase\" Rogers"
<rick@mvps.org> wrote:

sure. For info, in the UK separate ethernet ADSL modems are not very
common, and are usually a nuisance as the default DSL service is PPPoA
and not PPPoE.

Cheers,

Phil
--
Remember - Global Warming is only a weather forecast :-)

Did you reboot the router?
"Bobby" <bobby@europe.com> wrote in message
news:3m5t5fF15ei48U1@individual.net...

"Bobby" <bobby@europe.com> wrote in message
news:3m5t5fF15ei48U1@individual.net...
It may be something simple. Have any neighbours recently added a wireless
network? Have you installed anything that may be interfering? i.e. cordless
phone, cheap fan that generates a lot of r/f noise, fluorescent desk lamp.
etc.

Kerry

I agree that power cycling clears a lot of problems and also shut down the
machines until the router is back up and steady then boot up the
computers.
With my setup it's a Wireless 4 port router with my machine connected by
ethernet to the router, XPHomeSP2. The other XPHomeSP2 is connected
through wireless and I have a WinME machine connecting through wireless.
I find if I power cycle the router without switching off the machines
first and get everything working again with regards connecting to the
internet it plays havoc with shutting the XP's down at the end of the day.
Joan


Rick "Nutcase" Rogers wrote:


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Thanks for the suggestions.

The problem PC is a desktop system (not a laptop).

The network also includes two laptops (including the one I'm typing this on)
and another desktop PC. All connect wirelessly. All work perfectly.

My problem PC was working perfectly. I did not make any network changes. I
am reluctant to stop messing about with TCP/IP settings.

My modem and router is a combined unit. I switched it off last night but the
problem persisted this morning when I tried again. I presume switching it
off is the same as a reboot. The lights on the modem/router report no
problems whatsoever and every other PC/laptop works OK.

I can't connect to my modem/router web management page so something
fundamental must be going wrong between my PC and the router.

I am going to try to re-install my wireless network adaptor software. Then I
will replace my wireless adaptor to see if that helps.

Bobby

"Rick "Nutcase" Rogers" <rick@mvps.org> wrote in message
news:eooUnM$nFHA.2472@tk2msftngp13.phx.gbl...

In an earlier contribution to this discussion,
Bobby <bobby@europe.com> wrote:

Have you re-booted the problem PC? Does that help?

If the PC *appears* to be connected to the PC but can't talk to it, some of
the PCs wireless settings may have got corrupted somehow.

What level of wireless security are you using - encryption, MAC address
filtering, hiding SSID, etc.? If using encryption, make sure that the type
and parameters are set up on the PC exactly as on the router. If using MAC
address filtering, make sure that the PC's wireless card's MAC address is in
the router's Permitted table.

Can you ping the router from the PC?

You can *check* the PC's TCP/IP settings without having to mess with/change
them. When you type "ipconfig /all" at the Command prompt, does it display
an IP address in the same range as that of the router, and with the same
subnet mask?

[If you don't know how to interpret what it is telling you, copy the output
from ipconfig /all and paste it into this thread - preferably with the
equivalent output from a PC which *does* work].
--
Cheers,
Tim
______
Please reply to newsgroup. Reply address is invalid.

In an earlier contribution to this discussion,
<@> <@> wrote:

Perhaps for the same reason as you call yourself <@> ?

--
Cheers,
Tim
______
Please reply to newsgroup. Reply address is invalid.

"Tiscali Tim" <tele@privacy.net> wrote in message

timothy dear why do you call yourself tiscali timmy when you dont even use
piscalli :-)

"Tiscali Tim" <tele@privacy.net> wrote in message

a typical reply from pisscali timothy eh lovey

In an earlier contribution to this discussion,
<@> <@> wrote:


Killfile here we come . . . . .splosh!!!
--
Cheers,
Tim
______
Please reply to newsgroup. Reply address is invalid.

Try this:

http://www.spychecker.com/program/winsockxpfix.html


"Kerry Brown" <kerry@kdbNOSPAMsys-tems.c*a*m> wrote in message
news:uTI78kBoFHA.3448@TK2MSFTNGP12.phx.gbl...