Multicast pixelation in Routerboard

Hello,

I have Routerboard 750GL device and I use it with my ISP to watch IPTV and internet service.

The problem is that with HD channels it show pixelated images.

Is possible to debug and see if the device drop packages?

I use to graph the CPU and network usage of the router and it is not very busy:

Anyone could help?

Best regards.

I change the devive for a RB3011 and nlw it works well.

Regards.