recurring inability to connect

I have a WPA secured wireless home network that has been working without any
problems for months and now suddenly is giving me problems after each
hibernation of my laptop. All PCs are on XP Home SP2 and up to date.

The wlan is connected to the internet through a router and then a cable
modem. All of this has been fine for many many months with no problems
connecting to the internet. Now, suddenly, for no reason I can figure out,
after the laptop hibernates when it restores itself, the icon on the taskbar
shows that I am connected with excellent strength BUT the laptop cannot
connect to the internet. Clicking on the icon, disconnecting from the
network and reconnecting does not restore the ability to connect to the
internet. Repair restores the internet once in a while but the majority of
the time it does not.

When I reboot the laptop everything returns to normal until the next time I
hibernate the laptop.

How do I trouble shoot this problem? I am not knowledgeable in networking
and need advice. Could a recent XP update be the cause of the problem?
Could one of the neighbor's wireless networks be conflicting with my
network's "channel" or something else?

How do I figure out what the problem is?

Thanks.

Jeff

Jeff, I have exactly the same problem and am hoping that others will read
this and come to the rescue!
Larry

"Jeff" wrote:

> I have a WPA secured wireless home network that has been working without any
> problems for months and now suddenly is giving me problems after each
> hibernation of my laptop. All PCs are on XP Home SP2 and up to date.
>
> The wlan is connected to the internet through a router and then a cable
> modem. All of this has been fine for many many months with no problems
> connecting to the internet. Now, suddenly, for no reason I can figure out,
> after the laptop hibernates when it restores itself, the icon on the taskbar
> shows that I am connected with excellent strength BUT the laptop cannot
> connect to the internet. Clicking on the icon, disconnecting from the
> network and reconnecting does not restore the ability to connect to the
> internet. Repair restores the internet once in a while but the majority of
> the time it does not.
>
> When I reboot the laptop everything returns to normal until the next time I
> hibernate the laptop.
>
> How do I trouble shoot this problem? I am not knowledgeable in networking
> and need advice. Could a recent XP update be the cause of the problem?
> Could one of the neighbor's wireless networks be conflicting with my
> network's "channel" or something else?
>
> How do I figure out what the problem is?
>
> Thanks.
>
> Jeff
>
>
>

In my case I discovered the problem. It was my router and its MAC
filtering.

I figured it out because of an error message (Event viewer\System) that
said:
"The name "[my network group name} :1d" could not be registered on the
Interface with IP address [laptop]. The machine with the IP address [the
PC that controls the router] did not allow the name to be claimed by this
machine."

So I figured it was the security contols on the router. I turned off MAC
filtering and the problem went away.

I've also read that MAC filtering was anyway not that useful and since I
have strong WPA - PSK encryption, I left the MAC filtering function off.
However, it is wierd, because as far as I can see the MAC filter is set up
correctly (laptop's MAC properly entered) and the problem only ocurred after
hibernation - not on rebooting. I wish an expert would explain why that
might be. What is it in hibernation that makes the laptop's IP no longer
acceptable to the router when the MAC filter is activated?

Jeff

"Larry" <(E-Mail Removed)> wrote in message
news:2CAD5479-C9EE-4912-80D0-(E-Mail Removed)...
> Jeff, I have exactly the same problem and am hoping that others will read
> this and come to the rescue!
> Larry
>
> "Jeff" wrote:
>
>> I have a WPA secured wireless home network that has been working without
>> any
>> problems for months and now suddenly is giving me problems after each
>> hibernation of my laptop. All PCs are on XP Home SP2 and up to date.
>>
>> The wlan is connected to the internet through a router and then a cable
>> modem. All of this has been fine for many many months with no problems
>> connecting to the internet. Now, suddenly, for no reason I can figure
>> out,
>> after the laptop hibernates when it restores itself, the icon on the
>> taskbar
>> shows that I am connected with excellent strength BUT the laptop cannot
>> connect to the internet. Clicking on the icon, disconnecting from the
>> network and reconnecting does not restore the ability to connect to the
>> internet. Repair restores the internet once in a while but the majority
>> of
>> the time it does not.
>>
>> When I reboot the laptop everything returns to normal until the next time
>> I
>> hibernate the laptop.
>>
>> How do I trouble shoot this problem? I am not knowledgeable in
>> networking
>> and need advice. Could a recent XP update be the cause of the problem?
>> Could one of the neighbor's wireless networks be conflicting with my
>> network's "channel" or something else?
>>
>> How do I figure out what the problem is?
>>
>> Thanks.
>>
>> Jeff
>>
>>
>>