Problems reading other  wireless network.

Hello everyone,
I am writing this message because in the last weeks I have been having a problem with my wireless network on my macbook. Every time that I open the computer it reads another network first and not the one that is mine. My other computer, ipad and ipod touch are reading the network that I own, but this macbook is not reading it first. I always have to go to network settings and changes it.
Any advice or help in that regard? I will appreciate it.
Thank you.
Luis

Hi
Go into System Preferences... > Network
Select AirPort from the list on the left and then your usual Location
Click Advanced and select the AirPort tab
Delete ALL networks EXCEPT your own from the list of nearby networks
Click on OK, Apply, etc
Bob

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