Armbian_community 26.2.0-trunk.639 Trixie ttyS0
Ethernet is unstable, cannot connect with SSH, useDns, mtu change - did not help. WiFi is not initialized anymore.
I can confirm there is no file. I tried to fix it with AI help and did a lot of stuff, nothing worked.
Bu once decreasing speed to 100 ethtool -s end0 speed 100 duplex full autoneg on it started to work. Now I can connect via SSH and apt update work as well.