Realtek r8169 always flapping

[Joe Zeff]

On 10/27/2015 12:27 AM, Kseniya Blashchuk wrote:
> BTW, I thought maybe its not a driver but a NIC issue and some of the
> pins dont work properly. Maybe anybody knows how to check if all NIC
> pins are working?

I have a friend who does all of my hardware work once it gets past the 
card swapping phase.  (That I can do myself.)  Some of his wire-wrap 
work is heading out of the Solar System, and he doesn't even try to 
troubleshoot things like that; he just replaces the card if possible. 
However, as the card works fine at 100 Mbps but not at 1000, I doubt 
that it's hardware.