[moonmonkey]

My wifes Macbook (core duo white), has no internet access when it wakes up from being closed.
It connects to the network fine as I can remotely control it from my computer, but there is no web access or other internet access (ie software update cannot connect).

Network diagnostics reports the connection as being fine.

Logging out and back in fixes the problem.

Any idea how I can fix this?

[ibook_steve]

Wired or wireless connection? When you wake from sleep, do you get a valid IP address from whatever router or modem you use to connect to the Internet? More details are needed here about how you connect to the 'net.

Steve

[moonmonkey]

Wireless connection to Airport extreme, everything local, (file sharing between machines etc) works fine, just no internet at all.

[ibook_steve]

Check to make sure that you have a wireless connection on wake (Airport menu in the menu bar) and that you are getting a valid IP address (not a 169.x.x.x address) in the Network preferences.

Steve

[seanc]

Do you have all of the latest airport updates installed? This sounds like a common issue that I remember being reported a lot, the airport updates were supposed to fix it thought.

[ghporter]

You'll probably also find that turning off the AirPort card momentarily and then turning it back on fixes this. If it's what I think, it's the legendary "AirPort Wake From Sleep" bug. Nobody knows what triggers it, though it's probably some combination of updates that touch certain support files. And while there are approaches to correct the problem, they don't always work. Sometimes AirPort updates fix this, and one of the first things to do is to reapply the last/latest one. You may also want to either delete your current location, or if you're using Automatic, create a new one.

[kylef]

I have the same issue with my unibody MacBook that only happened after the 10.5.6 update. Quitting firefox and reloading it solved the problem for me - it's a hassle for a temporary solution but not much that can be done I guess. Glad to hear I'm alone with this though!

[wrambro]

The same type of thing used to happen to me. Updates made it happen less often, but it still happened. The only thing that wiped it out was moving my router closer to my computer.

It also could depend on the type of router you have. In my experience, the Apple routers, as well as Belkin and Netgear connect right away, but seem to have more problems the further you get from them. Linksys routers tend to be a little slower to connect (about 10 seconds) but will connect more reliably from further distances.

[Andy8]

I get the same problem with my MBA and I am using a Time Capsule/Airport Extreme. The Time machine backup will also until it finds my network after 30-45 seconds.