Re: Is this happening to you?

[Thomas Garvey <tgarvey@xxxxxxxxxx>]

I THINK I have an answer.

The Norton anti-virus that was free with our Comcast provider expired 
and Xfinity replaced it with software that runs on my router/gateway. 
It's called Xfinity Advanced Security.
It will not allow use of ftp. Supposedly you can temporarily allow use 
of certain ports but I can't get it to work. I think I have to figure 
out how to disable it and buy Norton again.

I will update when I resolve, if anyone else has this issue.

Best Regards,

Thomas Garvey

On 3/5/2021 10:24 AM, Scott Klement wrote:

> Thomas,
>
> That error ("A remote host refused a connect...") means that the 
> computer sent back a response saying that no application is waiting 
> for connections on the port you've selected.
>
> This could mean:
>
> 1) The connection is not going to the computer you think it should.  
> Perhaps you are connecting to a different one?
>
> 2) A firewall is responding in lieu of the computer, and saying you 
> can't connect.  This is unlikely, because typically a firewall will 
> simply discard your connection attempt rather than responding with a 
> refusal message.  (This avoids problems with ICMP flood attacks) but 
> its possible.
>
> 3) The computer is responding normally, but the application (SMTP or 
> FTP or whatever is returning this message) is not running.  Or is 
> running on another port.
>
> -SK
>
>
> On 3/5/2021 9:32 AM, Thomas Garvey wrote:
> > Suddenly, I can't use ftp from my PC to any of our servers.
> > I get a 425 (not able to open data connection).
> > I am remotely connected via VPN to our corporate network.
> > But a co-worker, who is similarly remotely connected, can use ftp to 
> > our servers without problems.
> >
> > Nothing has changed on our servers (except a cache battery 
> > replacement on one of them).
> > Nothing I know of has happened to my Windows 10 PC.
> > The only thing I can think of is that the Norton Anti-virus product 
> > on my PC (it came free with our internet provider),
> > has been replaced with something that supposedly provides the same 
> > protection through my router.
> >
> > Further, we have applications that use Scott Klement's SMTPR4 code 
> > and they all fail when they try to send email through our servers as 
> > well.
> > Here's that error...
> > ERROR: connect(): A remote host refused an attempted connect operation.
> > connect(): A remote host refused an attempted connect operation.
> >
> > Why would requests from my PC to the server be rejected or fail, but 
> > the same requests from another PC in another location work fine?
> > I've tried using the passive mode to no avail.