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The problem is we have lost the href configurtion after upgrading an ap from 4.2 to 5.1 release(i.e AP was on WLC 3 running 4.2 relese and i have moved it to wlc 2 running 5.1). Can anyone know whats the reason behind this.
Do you have the wlc configured alike? IF the wlans are not configured the same, the ap will use the configuration from the wlc it has joined. Verify that local switching is enabled on the wlan.