# Strange uploading process

**URL:** <https://forum.kirupa.com/t/strange-uploading-process/322739>\
**Category:** flash\
**Created:** [June 1, 2011, 9:47am UTC](https://forum.kirupa.com/t/strange-uploading-process/322739 "2011-06-01T09:47:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![bumb0x](https://avatars.discourse-cdn.com/v4/letter/b/90ced4/32.png) [@bumb0x](https://forum.kirupa.com/u/bumb0x)\
**Post date:** [June 1, 2011, 9:47am UTC](https://forum.kirupa.com/t/strange-uploading-process/322739/1 "2011-06-01T09:47:12Z")

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Hello guys, I have strange uploading behavior. When I try to upload few files via FileReference#upload(), the following occurs:

1. only 2 files can be uploaded at the same time
2. if uploading of other files didn’t start during ~60 seconds, I get IO error with code #2038 for these files.

Could it be flash error, or only server-side script can cause this problem?