I cannot change from RUN mode to AP mode.

During setup the WLAN adapter can be set by accident in the WPS pairing mode. To abort the WPS pairing mode, hold the [SETUP] button for 3 seconds and the WPS pairing will be aborted.

Remark:

This functionality is not available on WLAN adapter FW version 2.0.2 or lower. In that case, wait for around 2-3 minutes till the WPS pairing time-out.