Wifi started acting up today

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http://forums.fedoraforum.org – Hi folks, I have a bit of a problem. Without doing any updates (unless there was an automatic one that I can't remember), the wifi on my brand-new Thinkpad x220 has started dropping the connection every 10 minutes or so, and ESPECIALLY if I let it go to sleep. The network manager in gnome thinks it's still connected, so I can't just hit reconnect. But turning the wifi off and then back on, or using the hardware switch to power-cycle the radio restores connectivity for a while, but it inevitably drops again. At first I thought it was a network congestion issue, but changing wifi channels ha (HowTos)