[WP7605][SW] Relation to MCU busy and No return after cm command

Back Ground:
This question is related the following question.

Regarding to this behavior, SFDC answered this issue is caused by MCU busy during no return after executing “cm data connection”.
However, jyijyi and fpereiraEWC said this issue is related to test connection to www.akamari.com.
So I’m not sure the relation between MCU busy and root-cause of this behavior.

Could you tell me the detail whether this behavior is related to MCU busy or not.

Best Regards,

If you have account in SFDC, better check with SWI officially.