If you skip directly to 3.4 via Bossa, make sure you also manually update the DWC files in the WWW folder on the SD card. This may explain why you can't reach the web page.
@dc42 Hello David, You where wright! Wrong cable set. Checked the phase and had to change the connections. Motors work fine now.
Thanks a lot for showing the correct connection work.
Best Joep
As Tony mentioned the main issue is the different quotes i used in YAT, you need to select Unicode UTF -16[1200] then you get the correct double "quotes".