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Old 03-08-2004, 12:12 AM   #1
Registered: Sep 2003
Posts: 52

Rep: Reputation: 15
slow LAN connection

I have a RealTek RTL8139C 10/100 mps NIC card on Slack9. However, when it loads automatically the 8139too driver, and try connecting to my Windows Machine on the connection is very slow.

I have a 10mbps hub and the NIC autodetects a 10mbps HD connection.

When i boot the machine on RH9 the connection is fast despite using the same card,driver and hub and at 10baseTX-HD.

What is wrong with my slack connection.

PS: i have no firewall enabled.

Old 03-08-2004, 01:55 AM   #2
Registered: Oct 2003
Location: Hamilton,ON
Distribution: LFS
Posts: 46

Rep: Reputation: 16
try to update your kernel, get the latest one from
Old 03-08-2004, 04:58 AM   #3
LQ Newbie
Registered: Mar 2004
Location: .ru/moscow
Distribution: Gentoo
Posts: 17

Rep: Reputation: 0
there is a problem with rtl8139
try to look through a mailing-list archieve there are a lot of solutions, but... yes, try to change your kernel
Old 03-08-2004, 10:19 AM   #4
Registered: Oct 2003
Location: Kuala Lumpur, Malaysia
Distribution: Slackware 13.37 current
Posts: 770

Rep: Reputation: 33
I have RTL8139s in several machines without problems. The C stepping and newer seem stable.
Old 03-08-2004, 12:08 PM   #5
Registered: Aug 2003
Location: KC, MO
Distribution: CentOS, RHEL, SuSE, Fedora
Posts: 243

Rep: Reputation: 30
Did you look to make sure that the card is running at 100mbps full-duplex? You can type mii-tool at a command prompt as root and it will show you output like the following:

eth1: negotiated 100baseTx-FD, link ok

I've had a network card go bad and it started running in HD mode.


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