I used the latest build of Orange pi 5b. The strange point is our ethernet inteface is "end1" while normally it should be "eth0".
By the way, I tried other solution by editting the file /etc/network/interfaces and it seems to work well up to now.
@OttawaHacker Thank you for sharing the solution. I just followed your guide and it worked after first reboot.
By the way, later on, after several other reboot, the mac is reset again.
Do you have any other suggesstion to fix?
Thank you.
@hotnikq have you taken a look on this armbian development yet?
<External link deleted>
I can see this repo also supported rk3568 and I guess it seems to be similar to Rk3566.
Hope it may give you have some ideas to improve the build for rk3566.