On Wed, 28 Mar 2007 05:27:18 +0200, "GRL" <(E-Mail Removed)> wrote:
>I have a router ADSL connected to my laptop by Wi-Fi. After a while I
>disabled my network device (about an hour), I don't succeed in re-enabling
>it, as if my system had put it out. If I want to have it available, I have
>to restart the laptop! Is this normal?
Yes, it's normal and quite common.
What's happening is that your unspecified model access point or
wireless router, has decided that your unspecified model wireless
card, in your unspecified model laptop, has disappeared or gone away.
After a while, it will disconnect and make the IP address available to
the next user. On the better wireless clients (actually better
drivers), when the client wakes up or comes out of standby, it will
immediately attempt to renew the DHCP lease. If the IP address and
MAC address are still in the routers DHCP lease table, it will renew
and continue on normally. If not, it will restart the DHCP
negotiation process and obtain a new lease and IP address.
As you might suspect, there are plenty of places in this process of
waking up that can cause a connection loss or failure. The most
common is that the driver simply forgets to renew the DHCP lease.
Meanwhile the router has expired the connection and cleared the MAC
address table.
There's also various effects depending on how you disabled the
wireless device. You can turn it on and off with:
1. A switch on your laptop.
2. An <alt><something> key combination.
3. Enable/disable on the driver icon in the system tray.
4. Control Panel -> Network -> Wireless -> enable/disable
5. BIOS wireless (MiniPCI) on/off.
6. Wireless Zero Config manual/auto connect.
Each one can screw up in some way or in combination with the others.
From your description, I can't tell which one or combination might be
the culprit. In addition, putting the laptop into standby or
hibernate can cause disconnects.
Anyway, instead of rebooting, try:
1. Right click on the wireless icon in the system tray. Select
"repair". See if that kick starts the driver into cooperation.
2. Rigth click on the wireless icon in the system tray. Select
enable/disable and see if that helps.
3. Start -> Run -> cmd <enter>
IPCONFIG /RELEASE
wait a few seconds
IPCONFIG /RENEW
That should kick start the DHCP client and force a DHCP renewal.
4. Check for updated wireless drivers. Bugs are common with older
drivers.
--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
(E-Mail Removed)
#
http://802.11junk.com (E-Mail Removed)
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http://www.LearnByDestroying.com AE6KS
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