Internet connection/firewall problems

[Steve Winograd [MVP]]

In article <071c01c34b79$f9cd4050$a601280a@phx.gbl>, "Per Bylund"
<per@anarchism.net> wrote:

>I would really appreciate if anyone could help with this.
>I have tried forever to solve this (I am a 3xMCP) and
>have been in touch with many computer specialists, none
>of them knowing the source of the problem.
>
>I am using WinXP Pro on an ASUS laptop connected to a
>broadband LAN through a D-Link Ethernet Broadband Router
>(including firewall). A little now and then my Internet
>connection is lost and I have to renew it.

The problem could be that XP is turning off the network card to save
power. In Device Manager, open the network card's properties and look
for a Power Management tab. If there's a setting "Allow the computer
to turn off this device to save power", un-check it.

>Using "ipconfig /renew" through the command prompt
>returns an error message, but using "ipconfig /release"
>followed with "ipconfig /renew" refreshes the connection
>and makes me able to use Internet again.

What does the error message say?

>My friends have hooked up on Internet through the router
>with no such problems, which makes me believe there is
>something wrong with my networking settings.
>
>I have tried using DHCP and fixed IP addresses, but it
>does not resolve the problem.
>
>Default Gateway is set to 192.168.100.0.

That's not a valid IP address with the usual subnet mask of
255.255.255.0.

>Please help! Thanks.

--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
[url]http://mvp.support.microsoft.com[/url]

[Ken Wickes [MSFT]]

What's the error message that ipconfig returns?

--

Ken Wickes [MSFT]
This posting is provided "AS IS" with no warranties, and confers no rights.


"Per Bylund" <per@anarchism.net> wrote in message
news:071c01c34b79$f9cd4050$a601280a@phx.gbl...

> I would really appreciate if anyone could help with this.
> I have tried forever to solve this (I am a 3xMCP) and
> have been in touch with many computer specialists, none
> of them knowing the source of the problem.
>
> I am using WinXP Pro on an ASUS laptop connected to a
> broadband LAN through a D-Link Ethernet Broadband Router
> (including firewall). A little now and then my Internet
> connection is lost and I have to renew it.
> Using "ipconfig /renew" through the command prompt
> returns an error message, but using "ipconfig /release"
> followed with "ipconfig /renew" refreshes the connection
> and makes me able to use Internet again.
>
> My friends have hooked up on Internet through the router
> with no such problems, which makes me believe there is
> something wrong with my networking settings.
>
> I have tried using DHCP and fixed IP addresses, but it
> does not resolve the problem.
>
> Default Gateway is set to 192.168.100.0.
>
> Please help! Thanks.
>

[Per Bylund]

>What does the error message say?

It says:
"Windows IP Configuration

An error occurred while renewing interface Local Area
Connection : unable to contact your DHCP server. Request
has timed out.
An error occurred while renewing interface Network Bridge
(Network Bridge) 5 : unable to contact your DHCP server.
Request has timed out."