Ewon Flexy 102 is unreachable on eBuddy when FLB320A is inserted

Hi,
I am trying to setup 4G modem FLB320A with ewon Flexy 102. The ewon gets unreachable on eBuddy when FLB320A is inserted. The “usr” LED blinks RED, and all the LEDs on FLB320A are ON.

It works fine when the FLB320A is removed.
Would appreciate your help. Thanks.

Did you update the Flexy to latest firmware?