Wi-Fi sometimes disappears on the laptop when exiting standby mode?

Question

WiFi

At home, 2 laptops with Win XP on each, the Internet is distributed via a Wi-Fi router (D-Link).
Laptops are constantly closed and opened as needed, and sometimes (not every time) after the next opening, the Internet disappears. Moreover, it normally finds this wireless connection, connects, even receives IP, but there is no Internet. And on the second laptop at this time everything is OK (ie, the router has nothing to do with it). Only reboot helps.
Can anyone come across? Apparently business in OS (XP). Tell me how to treat, or at least how to restore communication without a reboot?
PS Already tried and did not help:
- in the properties of the wireless-network set Power Save Mode to Off
- turned off encryption on the router
- turned off and on wireless with the button on the laptop
- turned off-turned on wireless in the device manager

Answer 1

I occasionally have this happen on the seven. The standard diagnostic tool without reboot restores the link, although this is also not the case.
What Wi-Fi adapter do you have? Perhaps this is important. I have an Intel® WiFi Link 1000 BGN.

Answer 2

It happened on a lenovo laptop. Ping wrote "configuration error" or something like that. No manipulations with the adapter helped. I treated it only with a reboot, before the release of new drivers for the system board and wi-fi adapter

Answer 3

And no one thought that the problem is not in the laptop, but in the router? I had such problems with D-Link on a MacBook and a Dell Vostro. Buying a normal access point solved the problem.