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We have 34xAP (1130, 1240) 2x 4402 WLC and 60x7921 with 1.3.3.1.Is better use WLC 5.2.193.0 or upgrade to 6.0.196.0?2. Is it possible use WPA2 + AES + CCKM?3. Which security setting is best for use for 7921 and fast roaming?