Hi - I'm still running into the above WebDAV issue with slow uploads. I've done a bunch of research and have a little more info to add if it helps. I was curious if you had any other ideas.
1) I can reproduce the slowness uploading a file to https://www.webdavserver.com/
on a few machines running Windows 7 on different internet connections.
2) If I run a Windows 7 VM from https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/
in VirtualBox, and do the same WebDAV test in WinSCP, the upload is fast. So uploads on the host machine is slow, but an upload from a VM on it is fast.
3) From testing out SCP (not WebDAV): uploading files in WinSCP via SCPis fast, uploading files with scp.exe from cygwin is fast, but uploading files with pscp.exe is slow too. Not sure if that helps since pscp is slow too, but for SCP.
I know the problem is strange. Do you have any thoughts on other things I can try? I was reading a little about Nagle's algorithm and socket connections, but not sure if that has anything to do with it.
Thank you for your help.