@TP-Link_Deco 

Hi 

This is software from Fing  I also have a Fing box  running on Imac 2011  .

But if I log in to the TPlink  I see the same a lot of warnnings et. see the screen shot .

I also called TP link customers service  he sais activate fast roaming so I hope this will work . I have a Ziggo conect box (COMPAL) in bridge mode and the deco m4 in router mode all conected with cables and TP link unmanaged switch TL-SG105

@Ocrami some more screenahots which I do not understand  maybe a technician can make soemthing out of this ;-)