If you turned off ‘reconnect’ and you are using DHCP, it’s likely that when the router resets, the controller will lose connection to the router and not be able to recover. My recommendation is to either turn ‘reconnect’ back on, or set a static IP. If you are worried that leaving ‘reconnect’ on may freeze the controller, please upgrade to firmware 2.0.7, which has added watchdog timer to solve the freeze issue.
Of course resetting the power can also allow the controller to re-establish connection to the router.