I have a N36L - so the same motherboard but with a slower processor. I was initially unable to get DSM 6.2.2 working (with the extra.lzma file) - the network card only responded prior to installing DSM, after the initial reboot it stopped responding. So I reverted back to 6.1.7, which worked on the first attempt (and the NIC responded on the first reboot).
However, a few days ago when trying this again I noticed that on the first reboot after installing DSM (although the NIC wasn't responding) the hard drive was quite busy, doing what I presume is rebuilding/updating the kernel using the additional drivers ... because after a couple of minutes, it rebooted again by itself, this time the network card did start responding - and it worked fine.
But ... as mentioned above, Synology seem to have reverted the driver changes again for v6.2.3, meaning you can use the v1.03b loader without needing to add the "extra.lzma" file and the network card will work on the first boot after installing the DSM software ... which is even better 😀
Oh and auto hibernate (after HDD power down) worked on v6.1.7, it doesn't work on 6.2.2 or 6.2.3. However, a scheduled shutdown and/or startup works fine, which is what I use now because I found that the auto hibernate was too inconsistent.