In SharePoint 2010, using IE 9, and with Office 2010 32bit installed on the client PC, I cannot upload multiple files to a SharePoit library using the "Upload Multiple Documents..." control if the files are larger than 100MB.
I have the max file size set to 2GB in SharePoint and IIS.
I can upload the files one at a time if I browse to them. I cannot upload the files one at a time if I drag and drop into the "Upload Multiple Documents..." window. The control shows a red icon and "Failed" but I cannot find any errors in the logs.
What is going on here? How can I upload multiple large files?