MacBook Pro Airport connection drops out

I have a new and really cool MBP.
I have a 2 year old Airport Express connected to a Motorola Cable Modem creating my wireless home net.
I also have a 2 years old iBook G4 with no problem connecting to the airport.
My new MBP has no problem too when is connected to the AC. BUT when I run my MBP from the battery, the connection drops out randomly.
It's annoying and I cannot find any helpfull support or working solution at Apple.com nor at the other similar thread on this forum. I've tried some proposed solutions. But none worked more than some minutes (which mean that actually they didn't work).
I have some questions about all this:
1) Anybody knows if this is a Hardware or a Software issue?
2) Apple officially said anything about this problem?
3) Can I use my purchase warranty in order to demmand a replacement?
4) Is there any official or unofficial solution that really works?
Please, help. I think it's very stupid to have a nice and really expensive laptop without real wireless capability,
Who want a wireless connection if you aren't able to use it when you are not connected to the AC????
If I was running Vista on Dell or HP laptop I would understand. But on a Mac???
COME ON APPLE!!!!!
This is the 2nd BIG problem I am facing with my new MBP since I bought it on July. I am frustrated and tired. First I couldn't use Motion 3 for like a month because of a bad update. Now I realize the wireless capability is crap.
I have the feeling that the older Apple Computers are better... at least they work!

I had the same problem on my MacBook Pro for the last month or so after "updating" to 10.4.10. Yesterday I tried Loki's fix but couldn't connect at all after that. So I did an archive/install of 10.4.9 and it works better than ever before. I get full signal and it is a lot snappier and faster. The problem is likely in the 10.4.10 update, hopefully Apple will get that fixed in 10.4.11

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qamera wrote:
my Macbook Pro cannot connect to our wifi connection via Airport Express, though the connection is visible in the Airport drop-down and it shows full signal strength.
You might try resetting your connection settings using the steps listed in this message:
http://discussions.apple.com/thread.jspa?messageID=10695921&start=1
They're not guaranteed to solve the problem, but they'll only take you a minute or so to try.

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qamera wrote:
my Macbook Pro cannot connect to our wifi connection via Airport Express, though the connection is visible in the Airport drop-down and it shows full signal strength.
You might try resetting your connection settings using the steps listed in this message:
http://discussions.apple.com/thread.jspa?messageID=10695921&start=1
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--K

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gulchy, Welcome to the discussion area!
My iMac G5(intel core duo)...
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Hi,
I am currently replying to this as it shows in the iChat Community.
I have asked the Hosts to move it to Snow Leopard (you should not lose contact with it through any email links you get)
I also don't do Wirelss printing so I can't actaully help either.
10:01 PM Friday; July 29, 2011
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb( 10.6.8)
 Mac OS X (10.6.8),
"Limit the Logs to the Bits above Binary Images."  No, Seriously

Airport Connection Dropping Off

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First just install the new extreme to see if dropouts go away
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Then factory reset the express so that it can be a wired extender, don't worry, it will also provide a wifi signal with the same credentials as your main extreme

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64 bytes from 74.125.224.103: icmp_seq=1 ttl=55 time=37.692 ms
64 bytes from 74.125.224.103: icmp_seq=2 ttl=55 time=46.988 ms
64 bytes from 74.125.224.103: icmp_seq=3 ttl=55 time=33.466 ms
64 bytes from 74.125.224.103: icmp_seq=4 ttl=55 time=28.940 ms
64 bytes from 74.125.224.103: icmp_seq=5 ttl=55 time=58.070 ms
64 bytes from 74.125.224.103: icmp_seq=6 ttl=55 time=33.335 ms
64 bytes from 74.125.224.103: icmp_seq=7 ttl=55 time=33.361 ms
64 bytes from 74.125.224.103: icmp_seq=8 ttl=55 time=36.099 ms
64 bytes from 74.125.224.103: icmp_seq=9 ttl=55 time=41.111 ms
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Hello, my sister her macbook pro cannot connect to our wireless internet. My imac however can, so the problem has to do with her laptop. We were wondering how we could solve this problem? Thank you very much in advance!

Hello, my sister her macbook pro cannot connect to our wireless internet. My imac however can, so the problem has to do with her laptop. We were wondering how we could solve this problem? Thank you very much in advance!

We did that, but it just doesn't seem to be able to connect. So basically we tried to connect to our network and insert the password, but afterwards it does nothing. Weird thing is also that the network symbol (top right of the screen) says that it has been connected, but when I go look at the system preferences --> network, it states that it has not been connected

MacBook Pro Airport connection drops out

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