Hello xuguang.shao, thanks for the reply. My installation is on a BBG and it did not have an earlier installation and I have never installed the full version. I also started on a fresh BBB and only installed the lean version . This machine did not have any previous installs and I ended up with the same problem. I closed down all wios and anything that make a reference to the wio servers including the Android apps and node-red servers. I do not know what machine the error message is referring to and where the address in already in use since I started on a new machine and closed everything else down. How to I resolve this issue? Thanks