Thanks for answer BDAqua.
I am using a french MBP; I go to Applications > Utilities where I find different folders like Airport, Disc etc and also what is called "Trousseau d'accès" where passwords, certificates, Apple system defaults are found, as well as different networks - in my case "Free", "SFR", and a few others I have used to connect with internet. I would like to get rid of all traces of the networks / IPs I do not use and which are not valid.
The reason is that when I click on Safari to connect with the net an old network I no longer use shows up and every time I have to go down the list of networks to pick the valid one. The unwanted network is persistent and sometimes switches itself on during work. Going to system preferences and program the desired network does not solve the problem. (Maybe what I think could be a solution is not and the problem has to do with stronger / weaker signals from the different networks?) Anyway, can I dump the not valid networks without risks? / Mikael
PS During writing the old not wanted network connected itself again...
Well, I'm still not clear where this is at, but in System Preferences>Network>Airport>Advanced, you should see a place to highlight & remove the old networks it's connecting to.
Also, this has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
10.7 & 10.8…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
Is that Interface dragged to the top of Network>Show:>Network Port Configurations.
If using Wifi/Airport...
Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
For 10.5/10.6/10.7/10.8, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
Many thanks BDAqua, nice work, I got it.
As you adviced I went to Preferences>Network>Airport>Advanced, removed the old network and dragged the preferred one to the top. Especially dragging the preferred network to the top is essential I found.
The eliminated networks are still in the "Trousse de system" - whatever that means in english - (Applications > Utilities (Utilitaires) > "Trousse d'Accès"). I would like to remove the networks there as well unless it's risky; I don't think it should be because they were not there to begin with.
Again, many thanks!
It could be Access system or System access/Access kit. Google tranlates it as Access kit for an Apple computer. It has nothing to do with System Preferences. It's among other folders like Airport utility, ColorSync, Disc utility, Network utility, Raid, etc., etc., if one follows the path from applications. There's no drum kit stuff involved, it's a password locked folder with the networks and their passwords and is an OSX 10.6.8. component.
If elements got there because I joined a network it should be ok to get rid of them when I leave it, no?
Well, it's like this; At the bottom of the list of Applications in a French MBP is "Utilitaires" (which I translate to "Utilities"). Opening the latter gives you a long list of items beginning with Adobe Flash Player Install Manager and further down alphabetically a lot of other things, among others Editeur Applescript, Préférences Java, Transfert de podcast, followed by Trousseau d'accés (with a key-symbol in front of it). In "Trousseau d'accés" you will find 1: "Trousseaux: Session, Systéme, Racine de Système" and further down 2: "Catégorie: Tous les éléments (with a key-symbol in front f it), Mots de passe (passwords), Notes de sécurisées, Mes certificats (my certificates), Clés (keys), Certificats.
Under "Tous les éléments" (2) are Apple Code Signing Certification Authority, com.apple.kerberos.kdc, and further down the networks listed alphabetically like "freebox - AirPort network password" (yes, written in english) and a few other networks I do not longer use and wich are the ones I would like to dump. Phew ! Now you'll find it.
Remark: ignore the words "Trousse de systéme" they are written in the "Trousseau d'accés".