# \[Hilo\] Why I fail to send big data to FTP server?

**URL:** <https://forum.sierrawireless.com/t/hilo-why-i-fail-to-send-big-data-to-ftp-server/6599>\
**Category:** HL Series FAQ\
**Created:** [July 23, 2013, 9:45am UTC](https://forum.sierrawireless.com/t/hilo-why-i-fail-to-send-big-data-to-ftp-server/6599 "2013-07-23T09:45:26Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![FAQ\_Poster](https://avatars.discourse-cdn.com/v4/letter/f/f9ae1b/32.png) [@FAQ\_Poster](https://forum.sierrawireless.com/u/FAQ_Poster)\
**Post date:** [July 23, 2013, 9:45am UTC](https://forum.sierrawireless.com/t/hilo-why-i-fail-to-send-big-data-to-ftp-server/6599/1 "2013-07-23T09:45:26Z")

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[Hilo] Why FTP server always “Connection timeout. Failed transfer” when using HiloV2 as modem to transfer data larger then 150Kbytes? While no issue for Hilo3G module.

Answer: Since Hilo2G module is slower rate than Hilo3G, it may cause timeout in FTP server side, so please set in FTP server with a bigger “time out” value, then you can upload big files successfully with +KFTPSND.  
Theoretically, the speed for GPRS class 10(4DownLink+2UpLink) is 26.8kbps.