Category: General LinuxCNC Questions
Does it have an RJ45?
Supposing it does not as none of mine have it, so get an USB to RJ45/LAN adapter, around 7 to 15$.
I have 6 of those adapters from very old 10MBit to new 1GBit ones and all work perfectly fine with Mesa.
And i have a Dock for the Y370 with all the bells and whistles, got it for 30 Euro used! 
From some quick Google research, I think your Y370 is likely Gen2 (2017), while mine is Gen1 (2016), hopefully that won't be a problem, conflicting information about USB ports on the Gen 1, not sure if it has the fast USB-C port, I think not appears to be , 2x USB3.0 and one USB2.0.
USB3.0 is pretty fast, so will probably be okay if I get a decent Ethernet dongle.
Would like to see your USB to Ethernet dongle, I don't want that to be a bottleneck for the MESA card.