I've tried my best: ppp, wvdial, bluetooth dun and pan, usb-cable and still without success. Two different computers, both first with maverick and now natty. Desktop Gnome. Here examples:

1. USB-cable. Mobile broadbrand configured properly and says connected: no internet and disconnects. On network manager it says: mobile broadband used: never. This method has worked once or twice over 6 months ago on my other pc.
2. Bluetooth DUN: gnome-bluetooth does not have an option to dun, using blueman dial-up connects and shows network is visible on network manager, but it is not visible on network-manager.

Sharing wifi with Joikuspot (premium) seems to be hard for Ubuntu to connect to.
I've searched and followed all instructions I have find after investigating many wikis and posts. I have tried to configure tethering for hours and getting frustrated. Any solutions or is this a no-go?
I know this might be a bit more Ubuntu than Maemo -related so apologies.
Thanks.