Having trouble to keep internet connection constant, airport keep diconnect

I just re-install my Mac Os 10.5.2 after 1 year of using my Mac book. Since the re-installation, my airport has become very unstable, it connect to the internet for a few minute then disconnect, i have try to reset the "SMC", but the problem is still here.
Before the re-installation, the airport was also disconnecting but more rarely than now.
The time the airport remain connected is between 1 to 4 minutes, then disconnect.
To use internet after it disconnect, I have to switch off the airport then on again, used for another minutes then again back to on/off process.
I would like to have some hints how to solve the problem permanently . Thanks

HI and Welcome to Apple Discussions...
Try updating your system software to 10.5.8.
10.5.8 Combo Update Download
Run Disk Utility and repair disk permissions before and after the installation.
Carolyn

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I have been having problems with the internet connection via Airport Extreme which I find it a bit unusual and its still driving me nuts! This is what happened:
I have lost my internet connection last Sunday evening upon my return from a weekend away from home. The last time I have used the internet connection on my macbook was the previous Friday morning. Prior to the apparent disconnection on Sunday, I have always used my internet connection wirelessly through Airport Extreme (that is connected via ethernet cable to the NETGEAR DG834v2 ADSL modem which had worked beautifully until the problem arose on my return). This wireless internet connection allowed me to surf the internet anywhere in my home.
However, upon the successful re-connection to the internet via the modem router, I have discovered several new problems. I have tried to set up the internet connection wirelessly again but instead the following happened:
1. Router (Netgear) drops ADSL connection and cannot reconnect when connected to airport via Ethernet. (which is the case when using airport wireless).
2. Router connects to ADSL fine when computer is connected to it via Ethernet. (However, router disconnects when magsafe power adapter is taken out for some inexplicable reason!)
3. Router connects to ADSL fine when nothing is connected to the router (ie. No Ethernet connections)
4. Router connects to ADSL fine when connected to airport via Ethernet and computer is connected to airport via Ethernet.
So from the above, I cannot connect to the internet properly whether wirelessly or not so I suspect it could be faulty router or could it be airport extreme? I have asked my ISP for an explanation and all they have said is that it cannot be the mis-configuration but could be to do with the power adaptors or the way plugs are set up and suggested I take out all the power plugs (and power surge protector) out to switch everything off, the macbook, router, printer and airport extreme. However, when I have re-plugged them all back in, the problems I have described above still persists!
Would appreciate any help if anyone here recognises why this is the case and what seems to be the cause of this. If so, what should I do? Though I have written back to my ISP again yesterday for more help so im waiting to hear from them...
Thanks
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Message was edited by: leino88
Message was edited by: leino88

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Message was edited by: pbranda

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Having trouble to keep internet connection constant, airport keep diconnect

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