NetDrive version: latest one download yesterday 3.6.571
on NetDrive, I can create file but not folder.
On File zilla, I can create both file and folder.
This is the log
[2019/01/02 12:05:02.836] [ERROR ] [ 22380] [PROTOCOL ] Protocol::CreateDirectoryW id: [/volume1/], url: [volume1/New folder], exec error: [21]
[2019/01/02 12:05:02.841] [ERROR ] [ 22380] [FILESYSTEM] [W:explorer.exe] FileSystem::MakeDir => AERROR::FOLDER_CREATION_FAILED : \New folder
[2019/01/02 12:05:05.302] [ERROR ] [ 21812] [PROTOCOL ] Protocol::CreateDirectoryW id: [/volume1/], url: [volume1/New folder], exec error: [21]
[2019/01/02 12:05:05.302] [ERROR ] [ 21812] [FILESYSTEM] [W:explorer.exe] FileSystem::MakeDir => AERROR::FOLDER_CREATION_FAILED : \New folder
[2019/01/02 12:05:08.893] [ERROR ] [ 5016] [FILESYSTEM] W not mounted
[2019/01/02 12:05:24.624] [ERROR ] [ 14256] [SERVICE ] [ nd3 sdk version - child nd3svc : 3.6.571 ] [Child.cpp:132]
[2019/01/02 12:05:30.142] [ERROR ] [ 1544] [PROTOCOL ] Protocol::CreateDirectoryW id: [/volume1/], url: [volume1/New folder], exec error: [21]
[2019/01/02 12:05:30.142] [ERROR ] [ 1544] [FILESYSTEM] [W:explorer.exe] FileSystem::MakeDir => AERROR::FOLDER_CREATION_FAILED : \volume1\New folder
[2019/01/02 12:06:07.578] [ERROR ] [ 24240] [FILESYSTEM] W not mounted
[2019/01/02 12:06:14.201] [ERROR ] [ 21808] [SERVICE ] [ nd3 sdk version - child nd3svc : 3.6.571 ] [Child.cpp:132]
[2019/01/02 12:06:14.423] [ERROR ] [ 19000] [FILESYSTEM] [W:filezilla.exe] FileSystem::OpenDir => AERROR::FAILED :
[2019/01/02 12:06:14.425] [ERROR ] [ 6104] [FILESYSTEM] [W:filezilla.exe] FileSystem::OpenDir => AERROR::FAILED :
[2019/01/02 12:06:19.506] [ERROR ] [ 21876] [FILESYSTEM] W not mounted
[2019/01/02 12:06:38.811] [ERROR ] [ 2280] [SERVICE ] [ nd3 sdk version - child nd3svc : 3.6.571 ] [Child.cpp:132]
[2019/01/02 12:06:38.996] [ERROR ] [ 3020] [FILESYSTEM] [W:filezilla.exe] FileSystem::OpenDir => AERROR::FAILED :
[2019/01/02 12:06:38.996] [ERROR ] [ 15500] [FILESYSTEM] [W:filezilla.exe] FileSystem::OpenDir => AERROR::FAILED :
[2019/01/02 12:06:43.089] [ERROR ] [ 12672] [PROTOCOL ] Protocol::CreateDirectoryW id: [/volume1/], url: [volume1/New folder], exec error: [21]
[2019/01/02 12:06:43.089] [ERROR ] [ 12672] [FILESYSTEM] [W:explorer.exe] FileSystem::MakeDir => AERROR::FOLDER_CREATION_FAILED : \New folder
[2019/01/02 12:06:47.708] [ERROR ] [ 12672] [PROTOCOL ] Protocol::CreateDirectoryW id: [/volume1/], url: [volume1/New folder], exec error: [21]
[2019/01/02 12:06:47.708] [ERROR ] [ 12672] [FILESYSTEM] [W:explorer.exe] FileSystem::MakeDir => AERROR::FOLDER_CREATION_FAILED : \New folder
[2019/01/02 12:06:49.053] [ERROR ] [ 1300] [PROTOCOL ] Protocol::CreateDirectoryW id: [/volume1/], url: [volume1/New folder], exec error: [21]
[2019/01/02 12:06:49.053] [ERROR ] [ 1300] [FILESYSTEM] [W:explorer.exe] FileSystem::MakeDir => AERROR::FOLDER_CREATION_FAILED : \New folder
[2019/01/02 12:07:18.653] [ERROR ] [ 21196] [FILESYSTEM] W not mounted
[2019/01/02 12:33:26.364] [ERROR ] [ 22116] [SERVICE ] [ nd3 sdk version - child nd3svc : 3.6.571 ] [Child.cpp:132]
[2019/01/02 12:33:36.547] [ERROR ] [ 27516] [FILESYSTEM] [W:filezilla.exe] FileSystem::OpenDir => AERROR::FAILED :
[2019/01/02 12:33:36.548] [ERROR ] [ 17656] [FILESYSTEM] [W:filezilla.exe] FileSystem::OpenDir => AERROR::FAILED :
[2019/01/02 12:34:06.773] [ERROR ] [ 27516] [PROTOCOL ] Protocol::CreateDirectoryW id: [/volume1/], url: [volume1/New folder], exec error: [21]
[2019/01/02 12:34:06.774] [ERROR ] [ 27516] [FILESYSTEM] [W:explorer.exe] FileSystem::MakeDir => AERROR::FOLDER_CREATION_FAILED : \New folder
[2019/01/02 12:34:10.803] [ERROR ] [ 27516] [PROTOCOL ] Protocol::CreateDirectoryW id: [/volume1/], url: [volume1/New folder], exec error: [21]
[2019/01/02 12:34:10.804] [ERROR ] [ 27516] [FILESYSTEM] [W:explorer.exe] FileSystem::MakeDir => AERROR::FOLDER_CREATION_FAILED : \New folder