edstone:
Adam,
I am still having an issue with this. I have updated the dll to the latest version this moring. I uploaded a 250MB file this morning using IE7 and it worked great. The same file in FireFox 3.0 hangs at 100%. The file shows in the temp directory but the file name still starts with 'uploading'. The file is never moved to the permanent directory. Small files work fine in FireFox. Here is my control code:
What else can I look at? Here is a screen shot of the hang....
I think my issue was related to either session timeout or a timeout of my forms authentication. I increased my form authentication timeout threshold in the web.config to 4 hours:
<authentication mode="Forms">
<forms name=".ASPXFORMSAUTH" timeout="120" />
</authentication>
I also increased my session timeout on IIS to 4 hours as well.
I was able to upload a 1.5 GB file successfully in FireFox. I am not sure why I was able to upload in IE7 to start with before these changes but maybe it is in how each browser handles a timeout with security??? Anyway...thought I would share what worked for me.