Look at the big pane on the left side of the autorouter dialog labelled "preferred direction". Click on "top" and select "N/A". This tells the autorouter to keep off the top layer.
-j
Look at the big pane on the left side of the autorouter dialog labelled "preferred direction". Click on "top" and select "N/A". This tells the autorouter to keep off the top layer.
-j