My RV042 is not automatically switching to WAN2 when WAN1 fails. My Firmware Version is: 18.104.22.168-tm I attached a screecap of my "System Management" settings. The issue is that when I unplug the WAN1 Modem, the RV042 doesn't switch to WAN2. If I goto the System Summary Tab and click "renew" on WAN2, it detects WAN2 and works fine. What am I doing wrong?