LARTC - Apr 2002 - long delays with NNTP after switching T1 to other servcie provider

After moving a Linux server serving as a wireless gateway/router to another ISP,
I noticed a problem with NNTP.  When attempting to communicate NNTP through the
Linux server, there are long delays that often result in timeouts.  For example,
when using the newsreader pan, I get the following errors in the log file, in
reverse chronological order:

Connect Failure
NNTP handshake failed: Error reading from socket.
Handshake failed: Error reading from socket.
NNTP handshake failed: Error reading from socket.
Timed out waiting to read from the server.


The Linux server is fed with a T1 from a different source.  Before changing
over, there was no problem with NNTP.  The only other difference that would seem
to matter is the reconfiguration of the server.  I only took some services off
line (qmail for example) and reconfigured the routing.  All other traffic
through the server works well, with the exception of dhcp which I
haven''t
resolved yet.

I suspect a QoS control issue from upstream.  Is it possible that NNTP requests
are sitting in a queue somewhere waiting for a the "right" time to
dequeue?  If
so, would there be something I could do with the TOS that might help?  Or Am I
on the wrong track?

TIA,
David Koski
david@KosmosIsland.com