Why cant I make my laptop ethernet cards recognise 10Mbs?

[Duncan Berriman]

I've had the opposite and someone had hard coded the connection speed.

The supplier had put the following in rc.local

ethtool -s eth0 speed 10 duplex full autoneg off

When I upgraded to 100M the network failed as the isp failed to remove the
offending config (which I knew nothing about nor tell me about it). Once I
removed this everything started working ok.

I guess you could try the above to try and force it to 10M.

Duncan

> -----Original Message-----
> From: fedora-list-bounces at redhat.com 
> [mailto:fedora-list-bounces at redhat.com] On Behalf Of Mikkel 
> L. Ellertson
> Sent: 11 December 2007 14:10
> To: For users of Fedora
> Subject: Re: Why cant I make my laptop ethernet cards recognise 10Mbs?
> 
> 
> phil prentice wrote:
> > Hi
> >   I have got two laptops. If I connect one of them up to a 
> 10mbs ethernet 
> > connection; it recognises the connection immediately and I 
> can happily 
> > transfer files immediately.  However my second laptop just 
> will not work at 
> > 10Mbs.  100Mbs is not aproblem, but 10Mbps is simply not 
> recognised.  
> > Initially I thought it might be the on-board network card, 
> so I bought a 
> > netgear FA511 adaptor in the hope that that would work ok.  
> It has exactly 
> > the same problem.  Both the laptops are running Fedora-6 ( 
> I would update the 
> > failing one if I thought that it would make a difference).  
> The failing 
> > laptop simply does not see the 10Mbs signal.
> > 
> >   The laptop that works has a Broadcom coporation 
> BCM4401-B0 adaptor.  I tryed 
> > the failing laptop with the onboard SIS900 PCI fast 
> ethernet adaptor and the 
> > netgear 10/1000 mbps fast ethernet adaptor (FA511).  Both 
> refuse to detect 
> > 10Mbps.  I tryed setting the speed directly, but it did not 
> seem to help 
> > (mii-tool).  Has anyone got any ideas as to why this laptop 
> does not detect 
> > 10Mbps (100Mbps is fine) or what I might try to fix the 
> problem.  I cant 
> > really believe that both these adaptors would fail 
> especially the netgear 
> > one.
> > 
> > Thanks for any help
> > 
> > Phil
> > 
> You may want try ethtool instead of mii-tool and see if that works.
> 
> Mikkel
> -- 
> 
>   Do not meddle in the affairs of dragons,
> for thou art crunchy and taste good with Ketchup!
> 
> 


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