Android Question FTP files in a 4G network Not Downloading or Importing

Jairo Lizotti

Member
Licensed User
Hello Good Morning

I have a Sales App Developed in b4a, where the vendors of the company have a config file generated in a desktop system transfered to the FTP in model ".CSV", then In the APP the files are downloaded from the FTP and Imported to the system base.
but when the vendor uses a 4G network to communicate to the FTP, the files always not download, but when the network is in wi-fi, everything occurs in line!
any ideia how i can control a download transference to the FTP in 4G Network?
 

OliverA

Expert
Licensed User
Where is the FTP file located? On a server locally?
 

OliverA

Expert
Licensed User
So it is a public web server? Are you using passive or active FTP? If active, try passive. Many telecom providers use reserved IP addresses which may interfere with active FTP.
Active/passive FTP: http://slacksite.com/other/ftp.html
 
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