I just installed Arch Linux on my laptop. I was able to set up wireless internet using netcfg upon installation and I was able to connect to my wireless internet network. However, when I got home from work this morning, I was unable to connect to the network. I tried disabling netcfg and use NetworkManager, but when I try to connect, I get the error: "Connection failed: Activation of network connection failed." I made sure that my wireless interface was up, and that the network password was entered correctly. I've used Arch off and on for several years now, and I'm quite familiar with the operating system and how it works. But I've never encountered this problem before. Has anyone encountered this problem and found a fix for it? Any help would be appreciated.