MacBook Pro and Internet

I've just bought a MacBook Pro. I also have an iMac, which I use with a BTYahoo internet/email account and a BT Home Hub wireless router. I migrated my network details from the iMac to the MacBook Pro, and the MacBook Pro can connect to the router, and says there is an internet connection. However, there isn't. I can't connect to the internet or email. Meanwhile, the iMac on the desk next to the MacBook is still connecting just fine.
Any suggestions? I've checked that the MacBook Pro has the same account settings as the iMac, and it has. So I'm not sure the problem is a Mac problem or a BTYahoo problem.

Change your router channel. Sometimes this all you will have to do.
System Preferences/Internet & Network/Network
Unlock the padlock
Locations: Automatic
Highlight Airport
Click the Assist Me button
In the popup window click the Diagnostic button.
System Preferences/Network- Unlock padlock. Highlight Airport. Network Name-select your name. Click on the Advanced button. Airport/Preferred Networks-delete all that is not your network.
Place a check mark next to "Remember networks this computer has joined." Click the OK button and lock the padlock. Restart your computer.
http://support.apple.com/kb/TS1920 Mac OS: How to release and renew a DHCP lease
No internet connection (wireless)
Check to see if an extra entry is present in the DNS Tab for your wireless connection (System Preferences/Network/Airport/Advanced/DNS).
Delete all extra entries that you find.
Place a check mark next to "Remember networks this computer has joined."
How to diagnose and resolve Wi-Fi slow-downs

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In your MacBook Pro
1. Go to system preferences.... wi-fi advanced... (bottom right)
2. Then TCP/IP tab and select and copy the router ID
3. Go to Safari and paste in the search line the ID number (e.g. 321.321.2.2.)
4. Log in to your browser usually is... user; admin password; admin
5.In the Router go to more config (bottom right)
6. In wireless mode use g only and tick the b/g protection (if already not selected)
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Sig,
Thanks for the advice. I finally tried a solution after doing nothing. LoL. What I did do was change the channel the router was on from 9 to 7. I think I've done something like this in the past when I had slow internet and that worked out well too. I thought that would help and so far so good. Not an interruption so far but we shall see. To the guy or girl who expressed that they had the same problem as me I would try changing the channel of your router like I did. I will monitor the situation and see if it totally solved my problem or not and keep this thread updated. Thanks people

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If you are New to Mac... you may also find these links of Value
Mac 101
http://www.apple.com/support/mac101/
http://www.apple.com/support/switch101/     Switching from PC
MBP Support
http://www.apple.com/support/macbookpro
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Hello, SoonerAnesthetist.
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http://support.apple.com/kb/PH14142
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BXB1905 wrote:
I tried the Apple diagnostics it did not work.
What do you mean it did not work! What were the results of the diagnostic tests?
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Your profile confirms you are using Lion. Check out the following:
Troubleshooting Wi-Fi issues in OS X Lion and Mac OS X v10.6
Configuring 802.1X in Mac OS X Lion and Later

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hello.
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Hi all,
It seems I am not alone. There is a very strange problem either with my brand new unibody MacBookPro 17" or the Airport Extreme I am using to connect to the Internet via a cable connected router. The router I am using is Billion 7300 and works fine, and I can even connect to the wireless access via the router and all works fine. I am using Airport Extreme to extend the access area in my house and also use a USB drive for storage attached to the AirportExtreme. The funny thing is that the first couple of weeks I had no problems with the MacBookPro going on the Internet via the Airport. At that time I had the wireless part of the Billion modem disabled so as to avoid possible interference. Suddenly, one day about a week or so ago, the MBP would connect first time to the wireless Airport and to the Internet for only about a few seconds and then no update on any of the web pages. I was suspecting first my ADSL, but that was all along OK. The signal strength to the Airport is strong, but just the connection to the Internet is no longer available. Strange thing is I have in the same room a 24" iMac and this is still connected to the Internet via the Airport with no problems. Same settings on both! I tried everything I could think off on the Airport, tweaked, changed, reset and created new connection - but without any luck. It is as if the Airport decided to just block the MBP for whatever reason. I also have the Little Snitch, which I disabled too.
I was hoping that the latest Leopard 10.5.7 would have a fix for such a behaviour, but no change.
I cannot make any conclusion as everything contradicts: if the MBP wireless has a problem, I wouldn't be able to connect to the Billion wireless; if the Airport is at fault I should not be able to connect to it with the iMac. I go to work where other two brands of wireless hot-spots I use (D-Link and Billion 7402) and I have no problems swicthing between the two. It seems only Apple's Airport is a problem for my new MBP.
It must be something in the software of the Airport or MBP ?!?!?
APPLE, PLEASE HELP, THIS IS ANNOYING.
I already spent three days trying to solve a problem that should be 'No Brainer" according to the Apple's design books. But I do have a problem that I did not know about before.
Thank you in advance for any suggestions.
Vlado Damjanovski, Sydney.

MacBook Pro and Internet

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