I thought I'd post this as it's not in the Livecontrol 2 install guide and may catch people out when using the iConnectMidi2+.
The iConnectMidi2+ can have sysex messages blocked by default, which means you won't see Ableton clips appearing in Livecontrol (or any other template for that matter).
To enable them use the iConfig app and open the Port Filters page. Make sure the boxes are enabled for sysex messages on each channel. Then commit to flash using the Device menu.
I found this problem on Windows 8 but it's possible this may happen on OSX or with iConnectMidi4+.
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