Two scenarios:

1- I press the master unit for 5 seconds and then after 2 seconds or so I press the other unit to set up the mesh. Mesh is established but I still see the SSID of 2nd slave unit.

2- I press mesh set up button on both units the same time and mesh is established and only SSID of main unit broadcasts. But then I do not see “Guest Network” tab in mesh menu anymore.