slow network after adding XPPro workstations

[Steve]

I am about a third way through switching out old P2/WIN95 machines
with P4/XPPro machines here at our main office.
I replaced 4 of the workstations last Tuesday and noticed some
slowness.
When I replaced 6 more on Wednesday, it got a lot worse. It seems our
network slowed to a crawl and the collisions lights on the hubs are
alomost steady when everyone is logged in.

No other changes to anything else on the network, including routers.

I've called Motorola and they say the routers (Vanguard 320) will only
support 10mbps. I changed the NIC on all the XP machines from
Auto-detect to 10mbps/Half, but it does not seem to help. I also set
the servers to 10mbps/Half.

My LAN is now comprised of 15 XPPro PC, 18 Win95 PC, 5 NT4.0
application/file servers connected with 3com Hubs

Last thing, my branch office did not experience this kind of a problem
when I replaced their machines. They are now 12 XPPro PC and 1 NT4.0
appl./file server and all PC NIC set for Auto-detect.

If anyone has any suggestions, I'm open to anything. LAN/WAN is not
my forte, but I'm learning more each day...the hard way.

Thanks,
Steve

 

[TrxyM5]

Are you running Active Directory on your LAN? We jsut came
across this issue. We are running an NT 4.0 domain with a
few XP workstations. XP is configured to Autorenroll on
Active Directory. This article fixed us right up: 310461
Problems When the Autoenrollment Feature Cannot Reach an
Active Directory Domain Controller

I hope this helps!

Sara

 

[brian]

buy a switch, a hub creates collisions

-----Original Message-----
Are you running Active Directory on your LAN? We jsut came
across this issue. We are running an NT 4.0 domain with a
few XP workstations. XP is configured to Autorenroll on
Active Directory. This article fixed us right up: 310461
Problems When the Autoenrollment Feature Cannot Reach an
Active Directory Domain Controller

I hope this helps!

Sara
P2/WIN95 noticed worse.
It seems our machines kind
of a problem PC
and 1 NT4.0
.