X96 X4 - S905X4 based box - any success?

I have Wired network problem with my X96X4 4GB 32GB 1gbit run on 20.0-Nexus_nightly_20230113
Reboot the router many times
Please someone with experience help me in this case:

  1. Boot from MiroSD, connected to the network ethernet cable but no signal.
  2. Go to the Connections section and see Wired Interface: eth0, State: ready, Type: auto, Address: 169.254.96.150 (every time the network has problem, I see this IP)
  3. Go to System Info >> Network and see Link: Connected, MAC=90:0E:B3:58…(exactly the MAC printed in the box). Gateway: blank. It seems that this error has never been caused by MAC.
  4. Go back to Power Option and click Reboot from eMMC/NAND
  5. The device boots into Android. Then…
  6. I turn off the device with the remote control.
  7. Turn on the box by remote control. It boots into CoreElec.
  8. Wired internet automatically connects with real IP address same as my network.
  9. Shut down and reboot with remote control, the device still has Wired internet. But…
  10. Unplug power and restart, bad thing is come back, no wired internet, have to repeat step 4.

I’m going to give up on this box because it’s been giving me a headache all week. But I regret the effort of remaping the remote control, so I’ll try again this time to see if anyone can help.