This is the solution for you, If you are using a hotel, corporate, or public network which in some cases  are configured to prevent communication between devices.
If this is the case  you can  create an 'ad-hoc' network between your Mac computer and iPhone, iPad or iTouch.

1 "Turn Wi-Fi On", on your Mac computer.

2 Click "Create Network ..."

3 When this box pops up, in "Network Name" field enter desired name of your network.

4 and for the Security, choose: "40-bit WEP"

5 Choose your password containing: 5 letters or 10 numbers. (no more or less).
ex: "johns" or "1234567890"
  (The password must be entered as exactly 5 ASCII character or 10 hex digits.) 
6 Click "Create"


Ad-Hoc Connection is created, and now you can go to your iPhone, iPad or iPod touch and connect to you newly created connection, in this example called "My Connection".

1 Tap "Settings" App.

2 Choose "Wi-Fi" tab and turn Wi-Fi "ON".

The list of available networks will show up, as well as your new connection, in this example it is "My Connection".
3 Select your Network, and you will be promped to enter the password we created before.

Please note:
! During the time your computer is hotspot you won't be able to access internet. This is exclusive local connection, in this case between your computer and your iPhone, iPad or iPod touch.
! It takes about 10 seconds for connection to be established. Do not open the Photo Transfer app until you see your connection is selected and active, and the Wi-Fi icon must shows up in the top left angle of your device.

4 Now run Photo Transfer App on your iPhone, iPad or iPod touch and start transfering your photos and videos to your Mac computer.

 
    Transfer photos & videos from Apple Computer to iPad
    
    
 
    Transfer photos & videos from Windows Computer to iPad
    
        
 
        Transfer photos & videos from iPad to Apple Computer
        
        
        Transfer photos & videos from iPad to Windows Computer
        
        
 
        Transfer photos & videos from another iDevice to  iPad
        
  
 
    Transfer photos & videos from iPad to another iDevice    
    
        
        Explore & Transfer iPhone / iTouch photos & videos on  this iPad
        
          Explore & Transfer another iPad photos & videos to this iPad 
    
    
   Transfer photos  from 
   iPad to another iDevice over Bluetooth
    
 
 
 Problems connecting from Computer
 
    
 
    Problems connecting between Devices
   
    
 
 Creating Ad-Hoc Network
  on Mac Computer