One MBP disconnects all other computers

Question

Hi everyone. I have been having an issue with my network which consists of a Motorola Surfboard SB5100 (about 5-6 years old) and an Airport Extreme (newest model). I have 3 computers and an iPod Touch regularly connected to it: one iMac and two Macbook Pros (mid-2007 and the most recent model). The iMac is hardwired to the router and the two MBPs are connected wireless. The router is set to run on mixed G/N with WPA/WPA2 Personal as encryption.
I noticed the problem usually occurs with the 2007 MBP that is fully updated. When browsing the internet, the connection will suddenly drop and a webpage(s) will continuously attempt to connect. However, it never does. When I close the browser whether it be Firefox or Safari and restart the applications, there is no internet connection. Airport displays full bars and the router's light is still green. The modem seems to be acting normally as well. When this occurs, the internet connection is lost at all hardware currently connected to the router. This problem does not occur with the iMac, 2009 MBP, or iPod Touch - only the 2007 MBP. If I close all browsers or applications using an internet connection on my MBP and wait for about 5-10 minutes, the internet connection will come back.
Does anyone have any explanations for this problem or suggestions on how to fix it? Thanks.

Answer 1

knp59 wrote:
When browsing the internet, the connection will suddenly drop and a webpage(s) will continuously attempt to connect.
This may not tell you anything useful, but you might try this: Launch AirPort Utility. Double-click on your AirPort unit in the list on the left. Click on the "Advanced" item in the tool bar. Click on the "Logs and Statistics" button at the bottom. Click on the "Logs" tab. Look for any odd events around the time(s) you had that trouble.