Wi-Fi problem on Xoom after Jelly Bean also...
The Jelly Bean upgrade was just installed on my Xoom tablet and now Wi-Fi is broken. The tablet just loops displaying the Wi-Fi network name and "saved". If I try to connect, nothing happens. I've tried "forgetting" the network and also rebooting. None of the local networks can be joined anymore.
Also, when the tablet boots, it still displays the Ice Cream Sandwich splash screens but after it boots, it's got the Jelly Bean features.
I think the upgrade just killed my Wi-Fi, and without it, I can't connect to try to upgrade or download any fixes...