Can read, can create, cannot modify files.

[oXwvdrbbj8S4wo9k8lSN]

I have been struggling for a long time to mount a linux file share on our company's windows machines. Using sshfs-win, for the first time, I was able to mount a folder at all. So, there's light at the end... Thanks!
However, there's a catch: I cannot modify any existing files. I can access all folders, open files, even create new files but every time I try to edit an existing file, I get: Permission denied.

My setup is:
Windows 10 Enterprise with SSHFS-Win v3.5.20024 and WinFsp v1.5.20002
and an Ubuntu server running 16.04.6

What I tried so far:
[In the commands, I will replace my actual user name on the remote linux machine by linux_user_name, on the local windows machine by win_user_name, the domain of the windows machine by win_domain and the address of the linux machine by linux_address.]

• I tried to mount the folder directly via the file explorer menu (add network drive) with this connection string:
  \sshfs.r\linux_user_name@linux_address\home\linux_user_name\
• billziss-gh suggested in another similar issue to explicitly specify the domain and user name of the windows user like this:
  \sshfs.r\win_domain+win_user_name=linux_user_name@linux_address\home\linux_user_name

At this point I ran out of ideas to modify the connection string and tried the lower levels. However, with the sshfs.exe I could not figure out a way to create a connection at all. Every time I tried it, e.g. with the line "sshfs.exe linux_user_name@linux_address X:" I got "read: Connection reset by peer"

I am pretty sure that the problem is located somewhere on the windows side. Using a docker container (running Ubuntu) on the windows machine, I can mount the remote folder via "sshfs linux_user_name@linux_address:/home/linux_user_name mount_point" without problems and I have full access to the files. However, I need this access directly in Windows.

Does anybody have any ideas on what else to try? Or maybe what I do wrong when trying to use sshfs.exe directly?

[WBTMagnum]

At this point I ran out of ideas to modify the connection string and tried the lower levels. However, with the sshfs.exe I could not figure out a way to create a connection at all. Every time I tried it, e.g. with the line "sshfs.exe linux_user_name@linux_address X:" I got "read: Connection reset by peer"

I also had the read: Connection reset by peer problem. It's because sshfs.exe calls the system's ssh.exe and not the one bundled with sshfs-win.

To solve this, you can set the PATH environment variable before calling sshfs, e.g.

set PATH=C:\Program Files\SSHFS-Win\bin
sshfs.exe -f user@host: z:

See #95 (comment)