can not get IR302 to function properly??

can not get IR302 to function properly??

WAN TO CELL FAIL OVER..   

CELL TO LAN / WLAN

 as i have had it this way for some time now..my question is if i want it to work in reverse. Main Link =Cellular 1, and Backup Link=WAN, it does not work now, i have all 9 of my devices IR302's at current firmware. the Cell connects, in reverse but no routing at all. if i activate the restart interface when ICMP failed it just reboots and reboots over and over i use ping command and no success but Cellular is online and active