PasTim;635371 Wrote: 
> I wasted many, many, hours of my life testing with my wired NIC at 100
> Full Duplex.  I strongly suggest that you do not use this setting,
> unless you know that on your NIC and OS this setting also uses
> Autonegotiation. On my NIC using XP this setting precludes
> Autonegotiation, which is a no-no for almost all systems see
> http://en.wikipedia.org/wiki/Autonegotiation).  There is a separate
> setting called "Autoneg for 100FD" which works fine.  "Autonegotiation"
> on it  own also works fine for me.
> 
> However, this is all a bit irrelevant using a wireless connection.

PasTim, different NICs and drivers provide different settings for
allowing user's to configure NIC speed, duplex and auto-negotiation. 
For example, mine does not have a separate setting, one each for a
speed/duplex setting with and without auto-negotiation.

The more important point is to understand the link partner's
capabilities.

The problem that was trying to be tested and excluded (if I recall
correctly in your case, and for some others) was that certain NICs and
their drivers did not reliably support gigabit Ethernet on Windows 7,
particularly x64, and thus must be downgraded speed-wise to 100mbit. 
The nVidia 4 chip series was just such a platform, as are certain
Realtek chips.  Other people had problems with TCP checksum
offloading.

There were also some wireless connectivity issues with DLink's DIR655
and DIR855 models and some of the Logitech music devices.  The duet
would not maintain a connection to a DIR855 in the same room.

So the suggestion to try was to a) remove wireless entirely, and b)
reduce the Ethernet connection rate as necessary.  It is not clear
which tests have been performed yet, and which variables have been
eliminated.


-- 
MrC
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View this thread: http://forums.slimdevices.com/showthread.php?t=35718

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