HandyBackup 7.4 & ReadyNAS OS 6.1

This was working before? Also did you try PASV from the windows command prompt?

With the PASV mode, you need to make sure you have a relatively small range of passive ports configured on the RN316, and that they are all forwarded in your router to the RN316. Is that the case?

It was working. There were internet connection problems at the remote location. A Comcast tech came out, did some work, put in a new router/modem combo. I setup NAT on the new router to forward the same ports as the old router was forwarding: 443 (HTTPS), 21 (FTP), and 55000-55100 (FTP passive ports). I can remotely connect to the NAS' web management interface through HTTPS.

When I connect from the Windows Server 2003R2 SP2 command prompt I get:
C:\>FTP [NAS IP]
Connected to [NAS IP].
220 ProFTPD 1.3.4c Server (NETGEAR ReadyNAS) [NAS IP]
User ([NAS IP]:(none)): SQL2
331 Password required for SQL2
Password:
230 User SQL2 logged in
ftp> dir
200 PORT command successful
150 Opening ASCII mode data connection for file list
drwxrwxrwx 1 guest guest 270 Aug 26 13:29 Backup
226 Transfer complete
ftp: 63 bytes received in 0.00Seconds 63000.00Kbytes/sec.
ftp>

When I try from my Windows 7 Pro x64 SP1 desktop I get:
C:\>ftp [NAS IP]
Connected to [NAS IP].
220 ProFTPD 1.3.4c Server (NETGEAR ReadyNAS) [NAS IP]
User ([NAS IP]:(none)): SQL2
331 Password required for SQL2
Password:
230 User SQL2 logged in
ftp> dir
500 PORT/EPRT (Active Mode/Extended Active Mode) is not supported. Use PASV/EPSV
instead of this
425 Unable to build data connection: Invalid argument
ftp> PASV
Invalid command.
ftp>

FileZilla works fine from my desktop.

I guess the windows FTP is pretty limited. I use FileZilla myself.

If FileZilla is connecting (and Windows Server 2003R2 SP2) then I don't think there is any problem with port forwarding.

Is port masquerading turned on? Though that seems a long shot, since this was working before.

In the FTP settings on the ReadyNAS, Masquerading is enabled, and the masquerade address is set to the DDNS hostname I use for HTTPS & FTP connections.

This is from FileZilla:
Status: Resolving address of [NAS DDNS]
Status: Connecting to [NAS IP]:21...
Status: Connection established, waiting for welcome message...
Response: 220 ProFTPD 1.3.4c Server (NETGEAR ReadyNAS) [NAS IP]
Command: AUTH TLS
Response: 234 AUTH TLS successful
Status: Initializing TLS...
Status: Verifying certificate...
Command: USER SQL2
Status: TLS/SSL connection established.
Response: 331 Password required for SQL2
Command: PASS ***************
Response: 230 User SQL2 logged in
Command: SYST
Response: 215 UNIX Type: L8
Command: FEAT
Response: 211-Features:
Response: MDTM
Response: MFMT
Response: TVFS
Response: UTF8
Response: AUTH TLS
Response: MFF modify;UNIX.group;UNIX.mode;
Response: MLST modify*;perm*;size*;type*;unique*;UNIX.group*;UNIX.mode*;UNIX.owner*;
Response: PBSZ
Response: PROT
Response: SITE MKDIR
Response: SITE RMDIR
Response: SITE UTIME
Response: SITE SYMLINK
Response: REST STREAM
Response: LANG en-US.UTF-8*
Response: SIZE
Response: 211 End
Command: OPTS UTF8 ON
Response: 200 UTF8 set to on
Command: PBSZ 0
Response: 200 PBSZ 0 successful
Command: PROT P
Response: 200 Protection set to Private
Status: Connected
Status: Retrieving directory listing...
Command: PWD
Response: 257 "/" is the current directory
Command: TYPE I
Response: 200 Type set to I
Command: PASV
Response: 227 Entering Passive Mode (68,32,176,66,214,218).
Command: MLSD
Response: 150 Opening BINARY mode data connection for MLSD
Response: 226 Transfer complete
Status: Directory listing successful
Status: Retrieving directory listing...
Command: CWD /Backup
Response: 250 CWD command successful
Command: PWD
Response: 257 "/Backup" is the current directory

I'm so frustrated w/HandyBackup and this ReadyNAS.
HandyBackup doesn't do implicit FTPS. OS 6.1 doesn't do explicit FTPS or SFTP. OS 6.1 doesn't have a VPN client. Neither HandyBackup nor OS 6.1 have any documentation for their WebDAV support. Comcast had to have a combo modem/router, couldn't just provide a modem with their Extreme 105 service (which doesn't get anywhere near 105Mbps).

The combination does seem painful. Though you got the implicit/explicit story backwards.

HandyBackup seems to be working on Rsync, so maybe that will eventually help. Would a VPN router pair be a possibility?

I bought a Cisco Small Business RV220W VPN router right before Comcast replaced our modem with a modem/router combo since there are walkthroughs on configuring pfSense IPsec to work with Cisco equipment. I don't really want to put the RV220W behind the Comcast router if I have a choice.

So there are 2 options for tomorrow: try Poussin's vpnclient_1.1.6_all.deb and see if Comcast has a non-combo modem compatible with their Extreme 105 speed so I can plug the modem directly into the RV220W.

Thanks for the help.

The other annoying thing about HandyBackup is I'm on the US east coast, they're GMT+6, EST +11, so I'll hopefully have their reply to my support e-mail tomorrow morning.

Woohoo. Finally got an ipSec VPN setup between my pfSense firewall/router at our main location and the new Cisco RV220W at the remote location. Hopefully the rest is relatively smooth sailing.