Pepwave Surf SOHO MK3 rebooting

I am experiencing an issue the my Pepwave router reboot whenever the WAN connection changes. The most resent was today. I was running all night using WIFI as WAN connection to my mifi 8800L. The battery died and the Pepwave switched to the secondary WIFI as WAN network. The Peplink rebooted and my clients got disconnected.

Model: Pepwave Surf SOHO MK3

Firmware: 8.1.0 build 4941

I can’t reproduce the problem in my lab. May I know the problem definitely can be reproduced each time the Wifi WAN up/down? If so, please open ticket for us to take a closer look.