Cannot Remove Old WiFi Profiles - What Files to Delete Please

Using 11.4 with KDE 4.6.
In trying to diagnose a problem with my wifi AP, which keeps on disconnecting and reconnecting, I have changed from using NetworkManager to ifup and back a couple of times. (To no effect as far as diagnosis is concerned.)

When I last tried to use NetworkManager, having deleted the ifup configuration, my system behaved as though the NetworkManager profile still existed even though it had been deleted. Let me explain.

My AP has SSID set, say as “Actual_SSID.”
To create the new connection using NetworkManager (all old connections having been deleted) I scanned for available APs and selected “Actual_SSID.” However by the time I had completed creating this connection it appeared in NetworkManager as “Actual_SSID(2)” as if the previous connection profile still existed.

So which files must I delete to purge all the old connection details please.
Budgie2

If you are using the plasmoid networkmanager applet, then remove
$HOME/.kde4/share/config/networkmanagementrc
$HOME/.kde4/share/apps/networkmanagement/connections ## this is a directory - remove all files there

If you are using knetworkmanager, then the appropriate files may have a different name, but are probably in the same general location and recognizable by name.

For the “ifup” settings, look at “ifup-*” files in “/etc/sysconfig/network”

For the “ifup” settings, look at “ifup-*” files in “/etc/sysconfig/network”

This might be a typo. I guess it should be /etc/sysconfig/network/ifcfg- *.

Thanks. Appreciated.