Author Topic: Can't download with FTP from Internet (WZR-AGL300NH)  (Read 5392 times)

ostbey

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Can't download with FTP from Internet (WZR-AGL300NH)
« on: October 23, 2009, 07:55:51 AM »
   

I am puzzled by this problem:

I can't make any downloads with FTP from the Internet.

I am running Windows XP SP3, which is connected to the Internet via a Buffalo WZR-AGL300NH router.

I use F-Secure Internet Security 2010 (which has a firewall); the Windows Firewall is disabled, and so is its associated service "Windows Firewall / Internet Connection Sharing (ICS)".

I have already defined a rule in F-Secure to let pass FTP ports 20&21, active and passive, in and out, and have defined a rule for port forwarding in the Buffalo router:

 

Port Forwarding Registration Information

Group: FTP

Internet Side IP Address: AirStation’s Internet IP Address

LAN Side IP Address: 192.168.11.2

Protocol/LAN Side Port:
FTP (TCP Port: 20-21)
FTP (TCP Port: 20-21)

 

Nevertheless, no luck in making any connection:

 

C:\Temp>ftp ftp.funet.fi
Verbindung mit ftp.funet.fi wurde hergestellt.
Verbindung beendet durch Remotehost.

C:\Temp>ftp ftp.perl.org
Verbindung mit ftp.cpan.ddns.develooper.com wurde hergestellt.
Verbindung beendet durch Remotehost.

 

In other words, it first confirms it is "connected" and then the connection is reset by the peer, after a timeout (about 60 seconds or so).

 

It used to work before I installed the Buffalo router two days ago.

 

Any ideas on what I'm missing?

 

Thank you!


Aveyer

  • Big Bull
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Re: Can't download with FTP from Internet (WZR-AGL300NH)
« Reply #1 on: October 23, 2009, 08:03:38 AM »
   

Is UPnP enabled, although I don't think it affects FTP, also you could try putting your computer's IP in the router's DMZ and then try, but be aware that your computer is much more open to the net then.


ostbey

  • Calf
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Re: Can't download with FTP from Internet (WZR-AGL300NH)
« Reply #2 on: October 23, 2009, 08:18:55 AM »
   

In the router, UPnP is enabled, yes. Dunno about the F-Secure firewall (does it matter at all?).

What is DMZ?


Aveyer

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Re: Can't download with FTP from Internet (WZR-AGL300NH)
« Reply #3 on: October 23, 2009, 08:28:57 AM »
   

Demilitarized zone, puts your computer outside the router's firewall., but like I said your computer may be more vulnerable that way.

Are you sure it's not F-Secure?


ostbey

  • Calf
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Re: Can't download with FTP from Internet (WZR-AGL300NH)
« Reply #4 on: October 23, 2009, 08:49:28 AM »
   

How do I configure the WLAN router to put my computer into the DMZ, then?

In any case, thanks a lot for the explanation!

No, I'm not sure it's not F-Secure.

That's why I am currently testing it without the router (the way I used to connect before, directly, to my provider).

Seems like in this case the ftp is hanging, too!

Maybe this is a problem with these two ftp servers, not with my configuration?!

Maybe you can do me a favour and try to download ftp://ftp.funet.fi/pub/languages/perl/CPAN/modules/02packages.details.txt.gz

and/or ftp://ftp.perl.org/pub/CPAN/modules/02packages.details.txt.gz - and tell me if it's just me, or if it isn't working for everybody?

Thanks a lot for your help!

Best regards,

ostbey


Aveyer

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Re: Can't download with FTP from Internet (WZR-AGL300NH)
« Reply #5 on: October 23, 2009, 08:53:35 AM »
   

FTPs always work fine for me but I don't have the router you have, or F-Secure. If FTP is still not working when your not using the router then the router is obviously not at fault.


ostbey

  • Calf
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Re: Can't download with FTP from Internet (WZR-AGL300NH)
« Reply #6 on: October 23, 2009, 09:05:18 AM »
   

Maybe. I'm not sure it isn't due to the configuration changes to my computer that were necessary to make the Buffalo router work.

Unfortunately I have changed so many configurations everywhere that I don't quite remember where and what...

 

So if somebody could try the two links and tell me if it's working for them, that would already help me a lot!

 

Thank you all!

 

Cheers,

ostbey

 


Aveyer

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Re: Can't download with FTP from Internet (WZR-AGL300NH)
« Reply #7 on: October 23, 2009, 09:06:51 AM »
   

I've tested the links, both work fine. I'd ask the manufacturers of F-secure about FTP problems.


ostbey

  • Calf
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Re: Can't download with FTP from Internet (WZR-AGL300NH)
« Reply #8 on: October 23, 2009, 09:09:45 AM »
   

Thanks a lot for testing!

 

Maybe it's my provider?!

 

I'll investigate!

 

Best regards,

ostbey


ostbey

  • Calf
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Re: Can't download with FTP from Internet (WZR-AGL300NH)
« Reply #9 on: October 23, 2009, 10:26:07 AM »
   

It turned out to be neither of the two!

It was the Windows Firewall Service which was active again!

Don't know how this could happen - on two computers, at the same time!

Or does it happen everytime I boot?!?! ARGL!!!

I am sure I switched it off! (Stopped AND Disabled!)

How can it turn on itself?!?!

Anyway, problem solved!


ostbey

  • Calf
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Re: Can't download with FTP from Internet (WZR-AGL300NH)
« Reply #10 on: October 24, 2009, 01:27:54 AM »
   

Now that I think of it, the cause of the problem must have been Windows Update!

Windows Updates were installed automatically on both computers (both have XP and F-Secure) a day or two ago.

So I suppose this must have re-enabled the Windows Firewall.