Airport keeps switching to neighbours wifi!

[Matt-London]

Hi

I have an iMac and my wifi keeps changing to my neighbours network called "BTFON" which I believe is some kind of BT network/Zone which gives me a login page asking me to pay to use it. I keep having to manually change it back to mine.

In system preferences I have ticked the box marked 'Ask to join new networks' but it never does ask me, just joins automatically, for no reason i can think of.
I'm using OSX version 10.5.8
Can anyone help please?
Thanks

Matt

 

[-aggie-]

Do you have "Change location automatically based on network" (or whatever it says) ticked off? Not on my Mac at the moment.

 

[BlueRevolution]

Is it listed under "Preferred Networks"? Also ensure that "Remember any network this computer has joined" is deselected.

 

[Matt-London]

Thanks both of you - I have amended those settings and will hopefully stay with my own network now!
Cheers

 

[JamesCCook]

Thank you guys!

THis has been plaguing me for years.