Anyone's Lumia 920 having issues connecting to WiFi?

I just bought a Lumia 920 from ATT and the thing simply will not connect to my home wifi, with or without WEP password. Has anyone else experience this and/or know the way to fix things? I was hoping this would be a completely smooth transition from Lumia 900 to 920, but so far all I've done is put my sim back into the 900 in frustration.

Update on answer: "Here’s what I do, change to wpa2 and limit the connection to just b or g or n protocol (e.g. not b and g)." -TheVULGAR