How can I iit just connect with same wifi network

I just connect with same wifi connection,but when go to my office or out of town,then it does not connect to my device with other wifi or sim 4G network,it just connect when we r near to device an coonect with same network,how can I connect when I was connect with other wifi or sim 4G network when I was far away from device

I just connect with same wifi connection,but when go to my office or out of town,then it does not connect to my device with other wifi or sim 4G network,it just connect when we r near to device an coonect with same network,how can I connect when I was connect with other wifi or sim 4G network when I was far away from device

Hi, Have you checked the settings on your phone, such as push service on AirDroid settings is on, Power saving mode is off, etc?
Please check this post if it helps: http://forums.airdroid.com/viewtopic.php?f=4&t=15947