Retransmissions on slow file copy

Posted on 2003-03-13
Medium Priority
Last Modified: 2006-11-17

I'm experiencing a very weird problem with my network.
A network with about 20 NT servers, 2 WINS servers, DHCP for the NT
One server (the primary wins server) has problems with clients with
some ip addresses. If a user complains about a slow network, I can
solve it by disabling that ip address in the dhcp server, and do an
ipconfig/release/renew. But I don't wanna do that for every time this
Now if I take another workstation (doesn't matter which, even tried a
w2k station) and I give it (static) the 'bad' ip address, copying a 1
MB file on that server takes a very long time and sometimes breaks
If I now change the ip address of the workstation to another one and
try to copy the file again it is done in an instant. Copying files on
other servers with either ip address is as fast as it should be.

I've used a sniffer to capture packets to and from the server and I
get a lot of retransmissions, ack too long, window frozen and
nonresponsive station when using one of the 'bad' ip addresses. When
I'm just comparing the dataflow it doesn't differ that much from the
normal flow except that it sometimes takes more than 10 seconds before
another datapacket is sent.

I have absolutely no idea how to solve this. The wins entries are
correct, pinging each way with or without name is fast (<10ms).

Any ideas or suggestions?
Question by:Thrall
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions

Accepted Solution

cfarca earned 300 total points
ID: 8130815
Install at least one DNS server on your network.
Hoppe this will help, Chris.

Featured Post

Manage your data center from practically anywhere

The KN8164V features HD resolution of 1920 x 1200, FIPS 140-2 with level 1 security standards and virtual media transmissions at twice the speed. Built for reliability, the KN series provides local console and remote over IP access, ensuring 24/7 availability to all servers.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Sometimes you might need to configure routing based not only on destination IP address, but also on a combination of destination IP address (or hostname) and destination port number. I will describe a method how to accomplish this with free tools. …
We recently endured a series of broadcast storms that caused our ISP to shut us down for brief periods of time. After going through a multitude of tests, we determined that the issue was related to Intel NIC drivers on some new HP desktop computers …
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…

800 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question