Actually from a forum post:
https://askubuntu.com/questions/284770/how-to-disable-kde-wallet-and-have-remember-password-working"I solved this issue by going into the network manager settings by
clicking the wifi/network icon in the taskbar > Settings icon, and
then from the networks screen that appears, I right-clicked my
connection, clicked edit, and then under the "General configuration"
tab, ticked the "All users may connect to this network" check box. When I
restarted my computer, I wasn't asked to enter the kwallet password and
connected to my network automatically. "