I've a very strange problem boring me since a long time, and I dont find any clue to check what's the matter.
I've a ftp root with a lot of directory without any problem.
In a specific directory, I've a website containing several directories. On each directory, I've no problem on the root, but on the subdirectories, I can only download in Passive Mode, and upload on Port Mode, so I've to switch every time between modes to work.
+ Site1 > no problem
- directories > no problem
- subfolders > no problem
+ Site2 > no problem
- directories > no problem
- subfolders > DL in PASV, UL in PORT
As all sites are on the same IIS, all directories have the same privileges, I really stuck on what can explain that problem.
I would really enjoy if someone one day encountered the same problem and found a solution...
Thank you :)
Edit : a trace of an attempt to Download in PORT mode :
[15:56:28] [R] Connecting to x.x.x.x -> IP=x.x.x.x PORT=21
[15:56:28] [R] Connected to x.x.x.x
[15:56:28] [R] 220 Microsoft FTP Service
[15:56:28] [R] USER x
[15:56:28] [R] 331 Password required
[15:56:28] [R] PASS (hidden)
[15:56:28] [R] 230 User logged in.
[15:56:28] [R] SYST
[15:56:28] [R] 215 Windows_NT
[15:56:28] [R] FEAT
[15:56:28] [R] 211-Extended features supported:
[15:56:28] [R] LANG EN*
[15:56:28] [R] UTF8
[15:56:28] [R] AUTH TLS;TLS-C;SSL;TLS-P;
[15:56:28] [R] PBSZ
[15:56:28] [R] PROT C;P;
[15:56:28] [R] CCC
[15:56:28] [R] HOST
[15:56:28] [R] SIZE
[15:56:28] [R] MDTM
[15:56:28] [R] REST STREAM
[15:56:28] [R] 211 END
[15:56:28] [R] OPTS UTF8 ON
[15:56:28] [R] 200 OPTS UTF8 command successful - UTF8 encoding now ON.
[15:56:28] [R] PWD
[15:56:28] [R] 257 "/" is current directory.
[15:56:28] [R] CWD /site2/dir/subdir/
[15:56:28] [R] 250 CWD command successful.
[15:56:28] [R] PWD
[15:56:28] [R] 257 "/site2/dir/subdir" is current directory.
[15:56:28] [R] Listening on PORT: 59644, Waiting for connection.
[15:56:28] [R] PORT 192,168,212,170,232,252
[15:56:28] [R] 200 PORT command successful.
[15:56:28] [R] LIST -al
[15:56:28] [R] 125 Data connection already open; Transfer starting.
[15:56:28] [R] 226 Transfer complete.
[15:56:28] [R] List Complete: 5 KB in 0,05 seconds (5,3 KB/s)
[15:56:36] [R] TYPE A
[15:56:36] [R] 200 Type set to A.
[15:56:36] [R] SIZE file.doc
[15:56:36] [R] 213 155
[15:56:36] [R] MDTM file.doc
[15:56:36] [R] 213 20190221173054
[15:56:38] [R] PORT 192,168,212,170,232,253
[15:56:38] [R] 200 PORT command successful.
[15:56:38] [R] RETR file.doc
[15:56:38] [R] 125 Data connection already open; Transfer starting.
[15:56:38] [R] 550 The specified network name is no longer available.
[15:56:38] [R] Transfer Failed: file.doc
[15:56:38] Transfer queue completed
[15:56:38] Transferred 0 Files (0 bytes) in 2 seconds (0,0 KB/s)
[15:56:38] 1 File Failed
According to your error message, this may related with the antivirus interference.
If you have enable the antivirus interference in the server, I suggest you could try to disable it and try again.