@droftarts
This is the configuration before drives.

G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"Drukarka3D" ; set printer name ; Wait a moment for the CAN expansion boards to start G4 S2 ; Network M552 P192.168.1.15 S1 ; enable network and set IP address M553 P255.255.255.0 ; set netmask M554 P192.168.1.1 ; set gateway M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet

And regarding the "odd homing", of course you are right, I was only trying to move the the U axis when T1 was chosen. When moving X, it works well. Thank you.