EOIP tunnels, for TV streaming

I have one Mikrotik RB2011UiAS in one place, with one internet line (140/140mbps),
on the eth6 , eth7, eth8, eth9 and eth10 there are Satellite receivers, with IP-s: 172.16.1.3, 2.3, 3.3, 4.3, 5.3.

On the remote side, I have an RB2011iL, and 5 VDSL internet lines. Eth1 - eth2, eth3, eth4, eth5 is connected to a different internet line each, (pppoe authentication, 5 different lines, 5 different static IPs). On the other ethernet ports (eth 6-10) there are the “client” satellite receivers.

The First Mikrotik (lets just call it “server”) has 5 eoip tunnels.

The streaming is working, but only with SD channels. HD channels are freezing, all HD channels are unwatchable.

When I tryed to connect two receivers together with one UTP cable, the stream (SD, HD) was good.
But when I try to use the same setup but with a tunnel, it is not working.

I have the speed to watch HD streams, so the internet speed is not the problem, something in the configuration of the “server” router is causing this.

Can somebody help me with this, how can I find what is causing this problem?

Thank you!