Please note 

1,the network should be 2.4G and can not be 5G. 

2,the WiFi passwords can not contain special character,such as *，/，？，!，etc.

3,the user/wallet address should be the BTC main network which start with "1,3, or bc1" if you do solo mining.

4,let your phone/computer,luckyminer close to your router.

And if you can not solve it, contact the seller or contact +86 13688384591