how to kill ipv6 from root command line?

I have been having the usual struggle getting the laptop to surf after upgrading from 12.3 to 13.1 on an old X31 ThinkPad. Only Apper does updates and that lets me know that ipv6 must be working and sites that don't use it don't work, I think. I have set ipv6 not to work in network manager. I have usually used ifup in order to avoid using network manager in the past but that method does not work this time because it says that it needs some services that are unavailable. If I plug in a LAN cable it surfs. It is wireless that is causing me trouble. The wifi uses an Intel chip and I also have used a Ralink chip based wifi card in the past but it is not surfing now either... I have tried both DHCP and manual set up of the ip address in Network Management settings.

If I was a cynic I would think that the recurring network issues each generation of software are meant to keep desktop Linux from becoming popular... (Just a joke.) Should I delete network manager from packages and reboot and try to get ifup to work or what? I renamed the random name assigned to the wifi as wlan0 per previous generations. Does this matter?

KDE desktop
X31 thinkpad with Intel 2200 BG Calexico 2 wifi chipset
suse 13.1

cheers...

zxr250cc