remember wireless password in kde

I've got kubuntu 12.04.3 LTS installed. Don't know why - whether it's a default option or I've made this - but KDE always keeps asking me for the wireless connection password and it's annoying a little bit. Each time I reboot I have to enter kde wallet password.

What can I do to grant access to the kde wallet for the wireless network manager?

If that version of KDE has Network manager try opening network connections, go to the wireless tab and edit (or add) your wireless network info, making sure to check the box "available to all users." It won't ask for the wireless password again.

I know this thread is a wee-bit old, but if someone else has the same issue these days, here is how it worked for me under KDE Neon 5.10 (Ubuntu 16.04 LTS):

Setting up the system I must have disabled a feature called KWallet (probably thinking it had something to do with online payment). Thereafter, it would always ask me for the password again, and I didn t pay it any mind as I rebooted only a few times since then.

Enabling the Kwallet again under "Settings->User Accounts->Kwallet" resolved this issue for me.