Txmod Wi fi Signal Problem

Hello,

We are using txmod module, however, The device can not find its wi fi. It has a constant red light. Moreover, we are using Frsky x9d+ Taranis controller. Despite we have press the button backside of the device it still can not find our wifi. We have always used antennas. We can not find the enough information in the manual. Can you help us with this problem?