At one of my customers we ran into the problem that users were not able to upload files larger than 50MB within the HCL Connections Desktop plug-in for Windows but were able to upload files of up to 1GB (server setting) in the browser. The error users got in the desktop connector was “Server returned bad request (400)” when uploading these larger files. I will post the solution they found (and that I can’t seem to find online) here for others to use in case they run into similar problems.
It is possible to change the size at which the Plug-in begins using the large file upload functionality. This can be overridden using a policy set in the registry.
Add a string key in the policies section: HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\IBM\Social Connectors\Settings
with the name: LargeFileSize
The value is in megabytes and the default is 100MB. Set it to the size your system allows, for instance: 1024
The solution was tested and works for 64-bit systems.
Note: For 32-bit Windows you could try using: KEY_LOCAL_MACHINE\SOFTWARE\IBM\Social Connectors\Settings instead but this wasn’t tested. If you do, feel free to comment below if that worked.