nve0 nvidia onboard ethernet dies daily on 6.0 beta1

I'm still having problems with my onboard ethernet. 
It usually runs for a day or two and then I see this
in the dmesg:
...
nve0: device timeout (63)
nve0: link state changed to DOWN
nve0: link state changed to UP
nve0: device timeout (63)
nve0: link state changed to DOWN
nve0: link state changed to UP
nve0: device timeout (64)
nve0: link state changed to DOWN
nve0: link state changed to UP
...

It seems that once it counts up to 64 that it then
dies.  What does that number count stand for?  Is
there a way to prevent this?  Why does the link state
keep going up/down (although I haven't noticed any
problems and web/shh seem to work fine until it dies)

This is on a Shuttle XPC SN25P system running 6.0
beta1.

Thanks,
Alan Bryan


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