I can't deliver my photos from my Nexus5 to Mac mini on LAN

​I can't send my photos to my Mac on LAN.
I have tried for many times but they all failed.
It makes no sense,I was so upset that I have to use QQ to finish this work.
So I really hope someone can help me to solve the problem.
Because AirDroid is so awesome that I can not leave it for too long.
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My information:
* AirDroid App version : 3.1.5.1
* AirDroid for Mac version : 3.1.4
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- Coffee,where are you?
- I need you!
- Right now!

@brother cheng

Hi,

Please go to AirDroid Win/Mac and check if the connection mode is Local Connection.

And you can try remote transfer. The files will be sent and available for download within 7 days.