Hi It is a known issue, we don't have other resource to fix it now, when we finish 3D view, we will try to fix this issue. At present, please route it manually. Sometimes, if you can't get it done, try the tips below. -Use local auto router rather than cloud server. -Make sure PCB rule doesn't have 3 decimal places, EasyEDA only support 2 decimal places. -Skip the GND nets, add copper area to GND net. -Use small tracks and small clearance, but make sure the value is more than 6mil. -Route some key tracks manually before auto routing and ignore them when auto routing. -Add more layers, 4 layers or 6 layers. -Change the components layout, make them have more space between each other. -Don't make any via/pad overlap the different objects which can be set the net. -Stop the auto-router, close the script, and re-open the script to run local auto-router server again. -Sometimes, The auto-router won't work at the first time, please modify the layout and try serveral times.