> Both gived the errors under medium load with
> the original timeout: TX_TIMEOUT (20*HZ/100).
> They reported no error and worked perfectly after
> changing TX_TIMEOUT to (100*HZ/100)

Your ethernet is on fire.
Either that, or your machine is somehow not quite healthy.

Considering your "it really doesn't matter the computer",
I'd vote for the former, though.

T.
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