Thank you sindy for the reply.This issue is known and Mikrotik is working on it. It always helps to search before creating a new topic.
Hi BigTrumpet,I can confirm that Proscend 180-T is working with RB2011 and italian VDSL2 (TIM).
/ip address
add address=192.168.5.254/24 interface=bridge-LAN network=192.168.5.0
Thank you for the reply.If you do use bridge for local network, do you use administrative mac address for it? If not, Windows may detect different networks as the mac is set for the bridge dynamically, therefore can change as the connected ports are changing times to times.