My Macbook keeps disconnecting itself from the internet

I'm also experiencing this problem with my O2 router.
I experience drops in connection every half hour or so. It seems to have been caused by 10.6.2, as it is only since having installing this that I have experienced the problem.
It seems to be fine until data transfer stops, and then it inexplicably drops.
Any solution would be greatly appreciated - I'm struggling with my work and am beginning to get pretty annoyed (as much as a I love Apple!)

I'm at my son's house now and he has a different type of wireless connection (through ComCast) and has several computers attaching to the internet. The Mac does shut off the airport connection, but is able to re-log-in when I boot it up again.
I'm just posting this as a piece of information to help figure out the issue.

I spoke to an Apple Technical support guy today.
He told me that there may be an issue with the router using WEP instead of WPA(2). He suggested changing the router from WEP to WPA(2), as WEP is a "windows friendly environment".
Will be trying this later today to see if it solves the problems.

This is what I sent to Mac Feedback:

My computer randomly disconnects from my time capsule which is also my wireless router. The connection is lost to the internet as well as from time capsule itself thus it does not complete any back ups during this period. I've turned the time capsule on and off, as well as the incoming modem (Verizon Fios) as well as disconnecting and re-connecting airport. Also note that my other Mac, and iBook G4 remains connected during that time. I also went to network preferences and chose my network again. None of these "fixes" have any effect. The computer may or may not randomly reconnect in anywhere from 1 minute to 1 day. Needless to say, VERY frustrating. It's apparent given the many messages on the support forum that I'm NOT the only one with this issue.

Hi Guys, I bough my Mac almost two years ago. All this time I have experienced the same issue. There are tons of discussions re this issue in the internet. Unfortunately, Apple has done nothing to fix it. I have tried a lot of different options, but they work no longer then 1-2 days. The official fix - does not exist so far. It is quit strange, isn't? I can share my experience: if you go to AirPort Utility - Manual Setup - Wireless and then change Channel, it could help you till the moment you restart your computer; next time you need to repeat it again. It takes 2 minutes. Not sure that it would work for you but you could give it a try. Well, not the best option. Anyway Apple must fix it asap! Hello Apple, do you hear me? Good luck.

Hi Guys, I bough my Mac almost two years ago. All this time I have experienced the same issue. There are tons of discussions re this issue in the internet. Unfortunately, Apple has done nothing to fix it. I have tried a lot of different options, but they work no longer then 1-2 days. The official fix - does not exist so far. It is quit strange, isn't? I can share my experience: if you go to AirPort Utility - Manual Setup - Wireless and then change Channel, it could help you till the moment you restart your computer; next time you need to repeat it again. It takes 2 minutes. Not sure that it would work for you but you could give it a try. Well, not the best option. Anyway Apple must fix it asap! Hello Apple, do you hear me? Good luck.

Come on apple, that's another week passed by with no fix or even an acknowledgement of there being a problem

So frustrating, sort it out, please

Well, if you've had the computer for less than a year and they can't fix the problem (My new 17"MacPro disconnects when idle for a period of time), aren't they obliged to give you a new computer?

Believe this has been solved with the Update today.

Would you be good enough to be more specific about this update? The news hasn't traveled across the pond as yet, but it sems to be a miraculous update.

I disagree as I still have the problem on both my macbooks (my personal 13.3 and my work 15; both are late 2009 models). It is incredible frustrating.

Same here. Update not fixed this. Old MBP no probs. Running a macbook, iphone and Itouch in the house, they have no probs. Pretty frustrating.

Wireless signal strong. Loses internet. Switch airport off then on fixes it.

Wireless from timecapsule.

The only solution I've reached is to go to an Ethernet hookup; but, what a pain! The wires!

I tried the ethernet hookup. It made no difference whatever.

Mine too. It keeps dropping from the internet every 20 minutes. 3 month old MBP. The problem started only after i upgraded to snow leopard 10.6. Its very irritating.