1001er1001

I reinstalled armbian bionic, it was installed without a graphical shell and it works great, the problem is solved

but when i start installation armbian buster i don't have problem same as on top

When i start installation armbian xenial:

I have not tried kernel 3.4.y, because my orange pi pc + is in another house and I can’t connect to it because of very slow internet. when i tried sudo apt-get update i got an error, but when i used wifi i don't have this error

Yes, I tried different cables and even reconnected to different plugs in the router

I have orange pi pc+. i downloaded armbian bionic with kernel 4.19, when I connect an ethernet cable sometimes, he doesn't see it, when he see it i have very slow connection, even wifi faster than ethernet, what can I do?