Bridge WAN Interface

Hello.

I have one problem.
Configuration: Mikrotik RB2011, Internet by ISP - WAN Interface + PPPoE + IPTV over STB to TV.
I won’t use IGMP Proxy for STB because its some problem with time on STB, update list channels.

I bridge WAN Interface and STB port (name Bridge2). Then configure PPPoE (Interface - bridge2), DHCP Client (also bridge2) and NAT masquarade.

IPTV STB and Internet works fine. But when I “turn off” or “turn on” STB PPPoE connection down and reconnect after 20-30 seconds.
In Log I see that bridge2 leases IP address every time, when one interface in that bridge go down.

PS: If I configure PPPoE at WAN Interface(which in bridge with other Interfaces), PPPoE don’t connect.

Maybe it might help to manually set a MAC address for the bridge.