On Mon, 01 Jan 2018 18:46:46 -0500, Paul
wrote:

wrote:
On Mon, 01 Jan 2018 15:37:05 -0500, Paul
wrote:

wrote:
On Mon, 01 Jan 2018 14:26:00 -0500, Paul
wrote:

Can you ping the FTP server ?

In a regular Command Prompt
Ping does not seem to work on the domain names or the FTP servers for
them.
Do you know how to change the MTU in windows (temporarily) ?

http://my.bergersoft.net/2010/05/13/...-xpvista72008/

If you want the third option, it's still here, in the Legacy Tools section.
Normally your value might be 1500 or so. I can't check my WinXP right now,
as I'm doing maintenance on the WinXP drive :-( And I'm on Win8.1 as punishment.

http://www.dslreports.com/tools

Paul

What would that do for me?

That's a workaround for a Black Hole routing
problem caused by the server end having ICMP
turned off and your MTU happens to be too big.

(Definition)

https://en.wikipedia.org/wiki/Path_MTU_Discovery

Apparently there is a modification to TCP/IP in
later OSes, to fix that somehow. But I don't think
it's present on WinXP.

*******

Another thing you could try, is to use Wireshark
packet sniffer and see whether any RST packets are
being sent (they show as RST in Wireshark). As those
can be a legitimate part of protocol that says the
server doesn't have sufficient resources and would
like to close the connection.

https://en.wikipedia.org/wiki/TCP_reset_attack

None of your evidence suggests that's what is going
on, but I had a three month stretch where my ISP
was randomly sending those. Right after they bought
a Deep Packet Inspection box...

Paul

I doubt I am sending anything the server does not like since the same
laptop, sending the same file works fine on dial up, on cable at my
FILs house, DSL at the neighbor, using the same concentrator at the
end of the street and a free WiFi connection at a business. It even
works from here on dial up.
I am still waiting to hear back from the Telco. I expect they will be
back to work Tuesday. The tech support girl I talked to for 2 hours
was clueless. She kept going to ask someone, or so she said, until we
got cut off. She was probably handling other calls just to keep her
cycle time down.
This may not be the time for any of them to screw with me since I am
throwing all of my services on the table this week and reevaluating
how much I am paying for TV, internet, satellite, web hosting and
whatever.
I am even thinking about an air card but I expect that will be too
expensive.