Ethernet Slow Download

[amc2012]

OK, let me give you a short walk-through at what I did:

TEST AT YOUR OWN RISK!

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Thanks, @xalius

For those interested in trying this, you might not have the package device-tree-compiler installed (for the dtc command). Just install that first obviously. 

The other thread said lower figures were better - I tried 0 for tx-delay and 0 for rx-delay. Same experience when switching to GbE - connection hangs, sometimes the putty session disconnects, data slows to a trickle. Soon as I put it back to 100Mb, it's fine.

I then tried 6 for tx-delay, thinking maybe more delay meant "lower," and moved rx-delay to 10. No matter the setting, the same results appear - the putty session starts hanging and only responds sometimes. 

All setting changes were confirmed after reboot by using the cat for tx_delay.

I don't have a way of testing directly (not over putty) right now. 

But it seems that these figures aren't making any difference on my board. I might see a bit of a difference if I ran an iperf test, but basically, for purposes of connecting over a putty session and using the PINE64 board, changing the tx-delay and rx-delay seems to have no real effect on the GbE "issue," at least for me.

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PS: It is by no means sure that tuning the delays will fix all the GbE issues people seem to have, I had two working boards that can get around 800Mbit/s in both directions with the default values (tx-delay 3, rx-delay 0).... BUT I can degrade my performance substantially when I move away from those values, up to a point where the GbE stops working, so testing this on a board that doesnt work with the default will be interesting...

Not to stop anybody trying this also, i played around with my board (BTW tested by longsleep with his network and working fine there) not working with GB-lan, but got no improvement, just worse transfer rates. Only thing that helped was setting it to a fixed 100mb port. So i'm in doubt this will fix the problems many people having here with the network speed in GB-lan....

jm2c

Androsch

Are you saying you sent your board to longsleep and GbE is working totally fine in his environment??