I found that it worked on the first 5 ports but 6 and next was affected but - finnally I was able to upgrade FW and now it worked for all ports so Issue closed

Hi Just bought a new switch TL-SG116E V1.2 and I run in to the realy wierd issue: I had 3 PC contected to the mikrotik and it worked .. then I reconected all to the TP switch and 2 worked well but...