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Does someone know if WLC 2106 support AP 1140 ? I read that AP 1140 is CAPWAP only and I don't know if WLC 2106 supports CAPWAP.
Yes it does, you may have to upgrade your controller software to get 802.11n and CAPWAP, use the latest code 6.0.182.
CAPWAP was supported from code 5.2.157
The max throughput on the 2106 though is only 100mbps so yo wont see the highest speeds