W2KPro W98SE LAN trouble

[Jandez]

I have a big big problem.
In my little LAN with 3 W98SE platforms I Have added two platform with W2K Pro.
From a platform with W98SE to a W2KPro all work fine for a little time. Good file transfert etc.. From a platform with W2KPro to one with W98SE the connection is slow, some time the name of the other platforms come undefined in the LAN and so on.
The configuration on all the computers is correct, I'm sure.
But I think that W2KPro and W98SE can't live in peace on the same LAN.
Can be a W2KPro bug or some other thing?
Please can someone help me for this big problem?
Someone know a metod for resolve this Incompatibility?
Excuse me for my poor english.
Thanks to all
Jandez

[BBA]

It is not an incompatibility. They will work fine together.

First you have to accurately determine where the problem lies.
This means troubleshooting on hardware level is a good place to start.

First thing should be switching network cable port connections on your hub/router to see if the symptoms change or migrate to the next system in the same connection as the slow one.

If that does not turn up any clues, next would be to do timed trasnfers between the two 98 boxes, then between the two 2k boxes, then between 98/2k boxes just to see if one particular box has a problem no matter where it is connected or if both 98 boxes are slow to/from 2k boxes. ( You can expect the 98 boxes to be about 1/2 as fast as the 2K boxes in network trasnfer due to 2K's much improved TCP stack )

If those do not turn anything up, look at what has been done to the 98 boxes. Any speedguide tweaks applied? Any network monitoring apps installed? Any socket layer apps installed? ( Like Gator, new.net, etc...) Basically, these kinds of apps can kill network performance of a system.

You should also check your max tcp recieve window packet size your ISP allows and set all your machines the same value as well.

You can also remove the registry key for scheduled task searching in all the machines. Make the changes described here ( you can do it on the 98 boxes as well): http://www.xtremepccentral.com/forums/showthread.php?threadid=402

There are a few more reasons for slow network response involving hardware settings and a few things you can do to tweak them, but this should be good for starters.

[BBA]

BTW: I think you should have posted this thread in the network troubleshooting forum

[Jandez]

Ok, BBA, I've posted it also in network troubleshooting forum.
I'have already applied the modify advised in the forum you had give me.
But nobody change in transfert time is occourred. Always 200 minutes for transfert 25 Mb. If I do It from a W98SE platform only a few second are required.
You sayd that an hardware problem is possible. But the two W2KPro platform are different for hardware and characteristics.Only from the W2KPro there is the problem. I think that some thing is incompatible from W2K and W98 and non the inverse way.
Now are three months that I try to resolve the problem.
Without good result
Thank you
Jandez

[Mntsnow]

Moved thread to Networking.

Have you tried a diffent (New) Network card in the problem win2k system?
Have you rebuilt the TCP/IP stack?
Have you verified that you have a good network cable in use? (Put a tester on it or exchanged it for a known good one).

I have an enviroment that has many Win9x clients and multiple Win2K systems and I have no problems with what your discribing. Can you list what you have done to troubleshoot this problem so we dont go recommending things you have already done.

[Jandez]

Ok.
1) verified cable type and crimp. It's ok
2) substitute the network card. Same thing
3) substitute the HUB. same thing
4) substitute the cable. Same thing
5) Search in W2KPro platform any conflict, hardware and software. Is all ok
6) try to substitute some hardware componet. Same thing
7) try to connect the W98SE platform with a WIN NT 4.0 platform, same problem
8) verify if exist electrical interference or similar. No interference found.
And so on...
The strange thing is that the trouble exixst only from a W2K platform to a W98SE platform and not in the opposite way.
If I restart all the W2K platform, for same minute the LAN work (+ or -), but after a few minute the name of somebody platform came unrecognised on the LAN.
I don't understand.
I've do al the correct connection. In the microsoft forum nobody know the problem...
Bhà. Strange thing.
If somebody can help me I'll very happy.
Thanks to all
Jandez

[BBA]

7) try to connect the W98SE platform with a WIN NT 4.0 platform, same problem

You mean on the same machine you are running W2K on, when you install NT4 as the OS, you have the same problem?

If so, you have a problem with the hardware or resources in that sytem.

[Mntsnow]

Also double check and list here what networking protocols and clients you have installed on win98 systems

and then list what networking protocols and clients you have installed on your 2k boxes

[Jandez]

Reply to BBA:
The WIN NT 4.0 platform was another PC, but the problem is the same.
Reply to Mntsnow:
The networking protocol is TCP/IP for all the platforms. The protocol for W98SE platform (all) is Microsoft network client.
The last modify that I've apply at W2KPro platforms today is, from a DOS prompt:
net config server /autodisconnect:-1
With this change the LAN appear a little more durable, but I had test ths configuration only for a few minutes, 20 minutes + o -.
The slow files trasfert speed from a W2KPro platform there is again.
Thanks for all.
Jandez

[Jandez]

The trouble exist again.
Platform name of someone platform missing on LAN.
I have tried all my pc conoissance for solve it.
If Someone can help me, I'll very happy.
Thank you