Curious issue - wi-fi not connection after flash CM10 and restore

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http://forum.xda-developers.com – Hi, I have a curious issue. I flashed latest build of CyanogenMod 10 and I'm now unable to connect to wi-fi. I can see wi-fi SSID, I can connect, fill password, then phone says "Connecting..." but then it displays: "Saved. Secured with WPA/WPA2" and I'm unable to really connect. What is curious: when I restore nand backup to ROM which was working, it is not working now. Also when I proceed full wipe, if does not help. What only helps, is flashing original ROM via ODIN. Then I can connect, I can root but when I install CM10 (any build), wi-fi is not working. Any ideas? Be (HowTos)