Re: Poor TCP/IP Performance on 95/NT

Steve Coleman ( (no email) )
Wed, 13 May 1998 15:06:08 -0600

I don't have security enabled on either of the two NT servers. I have the
problem on a 95 station too, it doesn't even have security options.


I am not sure that hardware has much to do with my problem. I have tried 3
different NIC's and two different hubs. I


-----Original Message-----
From: Walter Parker <>
To: <>
Cc: <>
Date: Wednesday, May 13, 1998 11:28 AM
Subject: Re: Poor TCP/IP Performance on 95/NT

>I one had a throughput problem with my Windows NT box. If you enable
>security on your advanced TCP/IP settings, it limits your TCP/IP
>throughput greatly (80K with, 300-900K without).
>-- Walter
>On Wed, 13 May 1998, Dale E. Reed Jr. wrote:
>> > Steve Coleman wrote:
>> >
>> > I can't get better than 80Kb/sec on any of our Win95 machines or NT
>> > using FTP via our T1. Our Linux machine easily gets 130-150Kb/sec.
>> > machines are using the same NIC's (905TX) and are connected to the same
>> > I have read alot about MTU problems with SLIP and PPP with Win95 but
>> > find any info on improving TCP/IP on Ethernet.
>> I have gotten 400K plus from Microsoft's FTP site over a DS3. This is
>> from an Intel 10/100 NIC (in 10mb mode) and a Xircom on my laptop. We've
>> done plenty of stress tests on NICs using wstcp and although unix usually
>> beats NT on compatable machines, the hardware has a GREAT deal to do with
>> the actual speed.
>> --
>> Dale E. Reed Jr. (
>> _________________________________________________________________
>> IEA Software, Inc. | RadiusNT, Emerald, and NT FAQs
>> Internet Solutions for Today |
>> ----------------------------------------------------------
>> NTISP Mailing List
> ----------------------------------------------------------
> NTISP Mailing List